92,220
92220 Evening Star was the last steam locomotive built for British Railways.
- Even
- Composite
Where 92,220 fits
Why 92,220 is special
It was completed in 1960 and withdrawn in 1965, so a locomotive designed for decades of service worked for five years.
Factors & digit properties
- Divisors (48)
- 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 53, 58, 60, 87, 106, 116, 145, 159, 174, 212, 265, 290, 318, 348, 435, 530, 580, 636, 795, 870, 1060, 1537, 1590, 1740, 3074, 3180, 4611, 6148, 7685, 9222, 15370, 18444, 23055, 30740, 46110, 92220
- Prime factorisation
- 2^2 × 3 × 5 × 29 × 53
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 92220
- Scientific notation
- 9.222 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 1 1 0 1 0 0 0 0 0 1 1 1 1 0 0
1 × 65,536 + 0 × 32,768 + 1 × 16,384 + 1 × 8,192 + 0 × 4,096 + 1 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 92,220
Octal
2 6 4 0 7 4
2 × 32,768 + 6 × 4,096 + 4 × 512 + 0 × 64 + 7 × 8 + 4 × 1 = 92,220
Hexadecimal
1 6 8 3 c
1 × 65,536 + 6 × 4,096 + 8 × 256 + 3 × 16 + c × 1 = 92,220
Read as powers of two: 65,536 + 16,384 + 8,192 + 2,048 + 32 + 16 + 8 + 4 = 92,220.
In historical numeral systems
Egyptian
9 fingers, 2 lotuses, 2 coils of rope, 2 hobbles
9 × 10,000 + 2 × 1,000 + 2 × 100 + 2 × 10 = 92,220. 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
- Harshad (Niven) number
Related numbers & connections
One was the last steam locomotive British Railways built and the other the first built in Britain since.
View 60163 →History
92220 Evening Star was outshopped in March 1960 as the final steam locomotive constructed for British Railways, and was withdrawn in 1965 as dieselisation completed.
DocumentedHistoryGeography: United KingdomPeriod: 1960–1965
Common questions
Is 92,220 a prime number?
No, 92,220 is not prime.
What are the factors of 92,220?
The factors of 92,220 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 53, 58, 60, 87, 106, 116, 145, 159, 174, 212, 265, 290, 318, 348, 435, 530, 580, 636, 795, 870, 1060, 1537, 1590, 1740, 3074, 3180, 4611, 6148, 7685, 9222, 15370, 18444, 23055, 30740, 46110, 92220.
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