142,540
142,540 is a composite number, even.
142,540 (one hundred forty-two thousand five hundred forty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 7,127. Its proper divisors sum to 156,836, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22CCC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 45,241
- Recamán's sequence
- a(223,336) = 142,540
- Square (n²)
- 20,317,651,600
- Cube (n³)
- 2,896,078,059,064,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 299,376
- φ(n) — Euler's totient
- 57,008
- Sum of prime factors
- 7,136
Primality
Prime factorization: 2 2 × 5 × 7127
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,540 = [377; (1, 1, 5, 10, 1, 3, 5, 5, 1, 1, 1, 30, 1, 4, 2, 1, 1, 2, 2, 3, 1, 1, 1, 25, …)]
Representations
- In words
- one hundred forty-two thousand five hundred forty
- Ordinal
- 142540th
- Binary
- 100010110011001100
- Octal
- 426314
- Hexadecimal
- 0x22CCC
- Base64
- AizM
- One's complement
- 4,294,824,755 (32-bit)
- Scientific notation
- 1.4254 × 10⁵
- As a duration
- 142,540 s = 1 day, 15 hours, 35 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβφμʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋧·𝋠
- Chinese
- 一十四萬二千五百四十
- Chinese (financial)
- 壹拾肆萬貳仟伍佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142540, here are decompositions:
- 3 + 142537 = 142540
- 11 + 142529 = 142540
- 71 + 142469 = 142540
- 107 + 142433 = 142540
- 113 + 142427 = 142540
- 137 + 142403 = 142540
- 149 + 142391 = 142540
- 269 + 142271 = 142540
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B3 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.204.
- Address
- 0.2.44.204
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.204
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 142,540 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 142540 first appears in π at position 340,366 of the decimal expansion (the 340,366ordinal-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.