101,955
101955 Bennu was the target of OSIRIS-REx.
- Odd
- Composite
Where 101,955 fits
Why 101,955 is special
The spacecraft's arm sank into the surface far further than expected, revealing that the asteroid behaves less like rock than like a loosely bound pile of rubble.
101,955 is part of
Factors & digit properties
- Divisors (16)
- 1, 3, 5, 7, 15, 21, 35, 105, 971, 2913, 4855, 6797, 14565, 20391, 33985, 101955
- Prime factorisation
- 3 × 5 × 7 × 971
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 101955
- Scientific notation
- 1.020 × 10^5
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 0 0 0 1 1 1 0 0 1 0 0 0 0 1 1
1 × 65,536 + 1 × 32,768 + 0 × 16,384 + 0 × 8,192 + 0 × 4,096 + 1 × 2,048 + 1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 101,955
Octal
3 0 7 1 0 3
3 × 32,768 + 0 × 4,096 + 7 × 512 + 1 × 64 + 0 × 8 + 3 × 1 = 101,955
Hexadecimal
1 8 e 4 3
1 × 65,536 + 8 × 4,096 + e × 256 + 4 × 16 + 3 × 1 = 101,955
Read as powers of two: 65,536 + 32,768 + 2,048 + 1,024 + 512 + 64 + 2 + 1 = 101,955.
In historical numeral systems
Egyptian
1 tadpole, 1 lotus, 9 coils of rope, 5 hobbles, 5 strokes
1 × 100,000 + 1 × 1,000 + 9 × 100 + 5 × 10 + 5 × 1 = 101,955. 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
- Deficient number
- Happy number
- Harshad (Niven) number
Related numbers & connections
Both missions returned carbonaceous asteroid material within three years, and both found surfaces far weaker than expected.
View 162173 →Numbers Around Us
- appears alongside162173
why?
Strength 0.50, confidence "high".
- appears inNumbers assigned as identifiers
why?
Strength 0.50, confidence "high".
Science
OSIRIS-REx collected material from 101955 Bennu in October 2020 and returned it in September 2023. The sampling event indicated very low surface cohesion.
DocumentedSciencePeriod: 1999–
Common questions
Is 101,955 a prime number?
No, 101,955 is not prime.
What are the factors of 101,955?
The factors of 101,955 are 1, 3, 5, 7, 15, 21, 35, 105, 971, 2913, 4855, 6797, 14565, 20391, 33985, 101955.
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