142,643
142,643 is a composite number, odd.
142,643 (one hundred forty-two thousand six hundred forty-three) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 67 × 2,129. Written other ways, in hexadecimal, 0x22D33.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 576
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 346,241
- Recamán's sequence
- a(223,130) = 142,643
- Square (n²)
- 20,347,025,449
- Cube (n³)
- 2,902,360,751,121,707
- Divisor count
- 4
- σ(n) — sum of divisors
- 144,840
- φ(n) — Euler's totient
- 140,448
- Sum of prime factors
- 2,196
Primality
Prime factorization: 67 × 2129
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,643 = [377; (1, 2, 7, 2, 1, 2, 21, 1, 5, 2, 1, 1, 4, 1, 1, 2, 1, 1, 1, 1, 1, 53, 2, 1, …)]
Representations
- In words
- one hundred forty-two thousand six hundred forty-three
- Ordinal
- 142643rd
- Binary
- 100010110100110011
- Octal
- 426463
- Hexadecimal
- 0x22D33
- Base64
- Ai0z
- One's complement
- 4,294,824,652 (32-bit)
- Scientific notation
- 1.42643 × 10⁵
- As a duration
- 142,643 s = 1 day, 15 hours, 37 minutes, 23 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβχμγʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋬·𝋣
- Chinese
- 一十四萬二千六百四十三
- Chinese (financial)
- 壹拾肆萬貳仟陸佰肆拾參
Also seen as
UTF-8 encoding: F0 A2 B4 B3 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.51.
- Address
- 0.2.45.51
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.51
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 142,643 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 142643 first appears in π at position 384,572 of the decimal expansion (the 384,572ordinal-suffix:nd 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.