Numberwise

1838

1838 is the year the Great Western Railway's Brunel-designed steamship crossed the Atlantic.

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Where 1838 fits

Where 1838 fits: Mathematics, History, Related numbersMathematics: Semiprime. History: Historical years. Related numbers: 1866.MathematicsSemiprimeHistoryHistorical yearsRelated numbers18661838
1838 connects to 3 worlds: mathematics, history, related numbers.

Why 1838 is special

Steam crossings had been claimed before under partial sail. Sustained steam power across an ocean made scheduled transatlantic service possible, which sail never could.

1838 is part of

Numbers around us

Factors & digit properties

Divisors (4)
1, 2, 919, 1838
Prime factorisation
2 × 919
Digit sum
20
Digital root
2

Representations

Decimal
1838
Scientific notation
1.838 × 10^3

Roman numerals

M D C C C X X X V I I I

Binary

1 1 1 0 0 1 0 1 1 1 0

1 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,838

Octal

3 4 5 6

3 × 512 + 4 × 64 + 5 × 8 + 6 × 1 = 1,838

Hexadecimal

7 2 e

7 × 256 + 2 × 16 + e × 1 = 1,838

Read as powers of two: 1,024 + 512 + 256 + 32 + 8 + 4 + 2 = 1,838.

In historical numeral systems

Egyptian

1 lotus, 8 coils of rope, 3 hobbles, 8 strokes

1 × 1,000 + 8 × 100 + 3 × 10 + 8 × 1 = 1,838. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.

Babylonian

3 corner wedges (sixties place), 3 corner wedges + 8 vertical wedges (units place)

30 × 60 + 38 = 1838. Places are separated by a space on the tablet, with the higher place written first.

Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.

Other mathematical patterns

Related numbers & connections

Documented appearance
1838 is a year in the 19th century, in the 1830s.

1838 is a year in the 19th century, in the 1830s.

Connection
Steam crossings from 1838 made transatlantic schedules possible and the 1866 cable cut the crossing for information from days to minutes.

Steam crossings from 1838 made transatlantic schedules possible and the 1866 cable cut the crossing for information from days to minutes.

View 1866 →

Numbers Around Us

  • appears inHistorical years
    why?

    Strength 0.50, confidence "high".

Other connections

  • developed from1866
    why?

    Strength 0.50, confidence "high".

How is 1838 connected to another number? →

Technology & computing

  • In 1838, the first regular transatlantic steamship crossings began, cutting the passage from weeks under sail to about fifteen days (Atlantic).

    DocumentedTechnology & computingGeography: AtlanticPeriod: 1838

  • Sailing packets crossed the Atlantic on the wind's terms. Steam made the crossing time predictable from 1838, which is what allowed timetabled service and eventually the liner trade.

    DocumentedTechnology & computingGeography: Britain and United StatesPeriod: 1838

Common questions

Is 1838 a prime number?

No, 1838 is not prime.

What are the factors of 1838?

The factors of 1838 are 1, 2, 919, 1838.

What is 1838 in Roman numerals?

1838 in Roman numerals is MDCCCXXXVIII.

About this page's data

Mathematical facts:computed directly from the number's value — nothing to source or verify externally.

Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.

Last reviewed: 15 July 2026