100,642
100,642 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 246,001
- Recamán's sequence
- a(255,432) = 100,642
- Square (n²)
- 10,128,812,164
- Cube (n³)
- 1,019,383,913,809,288
- Divisor count
- 4
- σ(n) — sum of divisors
- 150,966
- φ(n) — Euler's totient
- 50,320
- Sum of prime factors
- 50,323
Primality
Prime factorization: 2 × 50321
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√100,642 = [317; (4, 6, 1, 7, 3, 1, 2, 20, 9, 1, 1, 3, 2, 1, 1, 3, 1, 1, 3, 1, 7, 19, 10, 5, …)]
Representations
- In words
- one hundred thousand six hundred forty-two
- Ordinal
- 100642nd
- Binary
- 11000100100100010
- Octal
- 304442
- Hexadecimal
- 0x18922
- Base64
- AYki
- One's complement
- 4,294,866,653 (32-bit)
- Scientific notation
- 1.00642 × 10⁵
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρχμβʹ
- Mayan (base 20)
- 𝋬·𝋫·𝋬·𝋢
- Chinese
- 一十萬零六百四十二
- Chinese (financial)
- 壹拾萬零陸佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100642, here are decompositions:
- 29 + 100613 = 100642
- 83 + 100559 = 100642
- 131 + 100511 = 100642
- 149 + 100493 = 100642
- 173 + 100469 = 100642
- 239 + 100403 = 100642
- 251 + 100391 = 100642
- 263 + 100379 = 100642
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A4 A2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.137.34.
- Address
- 0.1.137.34
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.137.34
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 100,642 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 100642 first appears in π at position 751,154 of the decimal expansion (the 751,154ordinal-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.