142,904
142,904 is a composite number, even.
142,904 (one hundred forty-two thousand nine hundred four) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2³ × 17,863. Written other ways, in hexadecimal, 0x22E38.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 409,241
- Recamán's sequence
- a(222,608) = 142,904
- Square (n²)
- 20,421,553,216
- Cube (n³)
- 2,918,321,640,779,264
- Divisor count
- 8
- σ(n) — sum of divisors
- 267,960
- φ(n) — Euler's totient
- 71,448
- Sum of prime factors
- 17,869
Primality
Prime factorization: 2 3 × 17863
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,904 = [378; (37, 1, 4, 30, 24, 2, 1, 4, 3, 3, 3, 3, 1, 3, 1, 1, 1, 2, 4, 1, 2, 1, 2, 2, …)]
Representations
- In words
- one hundred forty-two thousand nine hundred four
- Ordinal
- 142904th
- Binary
- 100010111000111000
- Octal
- 427070
- Hexadecimal
- 0x22E38
- Base64
- Ai44
- One's complement
- 4,294,824,391 (32-bit)
- Scientific notation
- 1.42904 × 10⁵
- As a duration
- 142,904 s = 1 day, 15 hours, 41 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβϡδʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋥·𝋤
- Chinese
- 一十四萬二千九百零四
- Chinese (financial)
- 壹拾肆萬貳仟玖佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142904, here are decompositions:
- 7 + 142897 = 142904
- 31 + 142873 = 142904
- 37 + 142867 = 142904
- 67 + 142837 = 142904
- 193 + 142711 = 142904
- 313 + 142591 = 142904
- 331 + 142573 = 142904
- 337 + 142567 = 142904
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B8 B8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.56.
- Address
- 0.2.46.56
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.56
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 142,904 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.