142,172
142,172 is a composite number, even.
142,172 (one hundred forty-two thousand one hundred seventy-two) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 35,543. Written other ways, in hexadecimal, 0x22B5C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 112
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 271,241
- Recamán's sequence
- a(39,656) = 142,172
- Square (n²)
- 20,212,877,584
- Cube (n³)
- 2,873,705,231,872,448
- Divisor count
- 6
- σ(n) — sum of divisors
- 248,808
- φ(n) — Euler's totient
- 71,084
- Sum of prime factors
- 35,547
Primality
Prime factorization: 2 2 × 35543
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,172 = [377; (17, 1, 1, 6, 2, 2, 9, 7, 6, 1, 9, 1, 3, 5, 4, 44, 8, 3, 1, 3, 1, 1, 1, 1, …)]
Representations
- In words
- one hundred forty-two thousand one hundred seventy-two
- Ordinal
- 142172nd
- Binary
- 100010101101011100
- Octal
- 425534
- Hexadecimal
- 0x22B5C
- Base64
- Aitc
- One's complement
- 4,294,825,123 (32-bit)
- Scientific notation
- 1.42172 × 10⁵
- As a duration
- 142,172 s = 1 day, 15 hours, 29 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμβροβʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋨·𝋬
- Chinese
- 一十四萬二千一百七十二
- Chinese (financial)
- 壹拾肆萬貳仟壹佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142172, here are decompositions:
- 3 + 142169 = 142172
- 13 + 142159 = 142172
- 61 + 142111 = 142172
- 73 + 142099 = 142172
- 181 + 141991 = 142172
- 211 + 141961 = 142172
- 241 + 141931 = 142172
- 379 + 141793 = 142172
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AD 9C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.92.
- Address
- 0.2.43.92
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.92
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 142,172 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.