Numberwise

8620

8620 is a case-hardening alloy steel.

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Where 8620 fits

Where 8620 fits: Related numbersRelated numbers: 52100, 9310.Related numbers5210093108620
8620 connects to 1 world: related numbers.

Why 8620 is special

It is carburised so the surface is hard and the core stays tough, which is how a gear tooth resists wear without the whole tooth becoming brittle.

Factors & digit properties

Divisors (12)
1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620
Prime factorisation
2^2 × 5 × 431
Digit sum
16
Digital root
7

Representations

Decimal
8620
Scientific notation
8.620 × 10^3

Roman numerals

Roman numerals as modelled here goes up to 3,999.

Binary

1 0 0 0 0 1 1 0 1 0 1 1 0 0

1 × 8,192 + 0 × 4,096 + 0 × 2,048 + 0 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 8,620

Octal

2 0 6 5 4

2 × 4,096 + 0 × 512 + 6 × 64 + 5 × 8 + 4 × 1 = 8,620

Hexadecimal

2 1 a c

2 × 4,096 + 1 × 256 + a × 16 + c × 1 = 8,620

Read as powers of two: 8,192 + 256 + 128 + 32 + 8 + 4 = 8,620.

In historical numeral systems

Egyptian

8 lotuses, 6 coils of rope, 2 hobbles

8 × 1,000 + 6 × 100 + 2 × 10 = 8,620. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.

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

  • Abundant number

Related numbers & connections

Connection
One is case-hardened for a tough core under a hard surface and the other through-hardened for rolling contact.

One is case-hardened for a tough core under a hard surface and the other through-hardened for rolling contact.

View 52100 →

Other connections

  • contrasts with52100
    why?

    Strength 0.50, confidence "high".

  • developed from9310
    why?

    Strength 0.50, confidence "high".

How is 8620 connected to another number? →

Technology & computing

  • AISI 8620 is a nickel-chromium-molybdenum steel intended for carburising, producing a hard wear-resistant case over a tough core.

    DocumentedTechnology & computingGeography: International — AISI, SAE and Aluminium Association designations

Common questions

Is 8620 a prime number?

No, 8620 is not prime.

What are the factors of 8620?

The factors of 8620 are 1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620.

About this page's data

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

Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.

Last reviewed: 15 July 2026