101,918
101,918 is a composite number, even.
101,918 (one hundred one thousand nine hundred eighteen) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 131 × 389. Written other ways, in hexadecimal, 0x18E1E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 819,101
- Flips to (rotate 180°)
- 816,101
- Square (n²)
- 10,387,278,724
- Cube (n³)
- 1,058,650,672,992,632
- Divisor count
- 8
- σ(n) — sum of divisors
- 154,440
- φ(n) — Euler's totient
- 50,440
- Sum of prime factors
- 522
Primality
Prime factorization: 2 × 131 × 389
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√101,918 = [319; (4, 15, 3, 10, 2, 57, 1, 1, 3, 5, 2, 1, 2, 1, 5, 3, 2, 1, 1, 4, 1, 2, 4, 1, …)]
Representations
- In words
- one hundred one thousand nine hundred eighteen
- Ordinal
- 101918th
- Binary
- 11000111000011110
- Octal
- 307036
- Hexadecimal
- 0x18E1E
- Base64
- AY4e
- One's complement
- 4,294,865,377 (32-bit)
- Scientific notation
- 1.01918 × 10⁵
- As a duration
- 101,918 s = 1 day, 4 hours, 18 minutes, 38 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ραϡιηʹ
- Mayan (base 20)
- 𝋬·𝋮·𝋯·𝋲
- Chinese
- 一十萬一千九百一十八
- Chinese (financial)
- 壹拾萬壹仟玖佰壹拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 101918, here are decompositions:
- 79 + 101839 = 101918
- 181 + 101737 = 101918
- 199 + 101719 = 101918
- 277 + 101641 = 101918
- 307 + 101611 = 101918
- 337 + 101581 = 101918
- 499 + 101419 = 101918
- 541 + 101377 = 101918
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.142.30.
- Address
- 0.1.142.30
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.142.30
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 101,918 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 101918 first appears in π at position 652,197 of the decimal expansion (the 652,197ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.