142,891
142,891 is a composite number, odd.
142,891 (one hundred forty-two thousand eight hundred ninety-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 7 × 137 × 149. Written other ways, in hexadecimal, 0x22E2B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 576
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 198,241
- Recamán's sequence
- a(222,634) = 142,891
- Square (n²)
- 20,417,837,881
- Cube (n³)
- 2,917,525,272,653,971
- Divisor count
- 8
- σ(n) — sum of divisors
- 165,600
- φ(n) — Euler's totient
- 120,768
- Sum of prime factors
- 293
Primality
Prime factorization: 7 × 137 × 149
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,891 = [378; (108, 756)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand eight hundred ninety-one
- Ordinal
- 142891st
- Binary
- 100010111000101011
- Octal
- 427053
- Hexadecimal
- 0x22E2B
- Base64
- Ai4r
- One's complement
- 4,294,824,404 (32-bit)
- Scientific notation
- 1.42891 × 10⁵
- As a duration
- 142,891 s = 1 day, 15 hours, 41 minutes, 31 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβωϟαʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋤·𝋫
- Chinese
- 一十四萬二千八百九十一
- Chinese (financial)
- 壹拾肆萬貳仟捌佰玖拾壹
Also seen as
UTF-8 encoding: F0 A2 B8 AB (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.43.
- Address
- 0.2.46.43
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.43
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 142,891 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 142891 first appears in π at position 53,713 of the decimal expansion (the 53,713ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.