142,912
142,912 is a composite number, even.
142,912 (one hundred forty-two thousand nine hundred twelve) is an even 6-digit number. It is a composite number with 56 divisors, and factors as 2⁶ × 7 × 11 × 29. Its proper divisors sum to 222,848, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22E40.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 144
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 219,241
- Recamán's sequence
- a(222,592) = 142,912
- Square (n²)
- 20,423,839,744
- Cube (n³)
- 2,918,811,785,494,528
- Divisor count
- 56
- σ(n) — sum of divisors
- 365,760
- φ(n) — Euler's totient
- 53,760
- Sum of prime factors
- 59
Primality
Prime factorization: 2 6 × 7 × 11 × 29
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,912 = [378; (27, 756)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand nine hundred twelve
- Ordinal
- 142912th
- Binary
- 100010111001000000
- Octal
- 427100
- Hexadecimal
- 0x22E40
- Base64
- Ai5A
- One's complement
- 4,294,824,383 (32-bit)
- Scientific notation
- 1.42912 × 10⁵
- As a duration
- 142,912 s = 1 day, 15 hours, 41 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμβϡιβʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋥·𝋬
- Chinese
- 一十四萬二千九百一十二
- Chinese (financial)
- 壹拾肆萬貳仟玖佰壹拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142912, here are decompositions:
- 5 + 142907 = 142912
- 41 + 142871 = 142912
- 71 + 142841 = 142912
- 101 + 142811 = 142912
- 113 + 142799 = 142912
- 179 + 142733 = 142912
- 239 + 142673 = 142912
- 293 + 142619 = 142912
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B9 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.64.
- Address
- 0.2.46.64
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.64
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 142,912 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 142912 first appears in π at position 471,071 of the decimal expansion (the 471,071ordinal-suffix:st 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.