142,729
142,729 is a composite number, odd.
142,729 (one hundred forty-two thousand seven hundred twenty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 53 × 2,693. Written other ways, in hexadecimal, 0x22D89.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 1,008
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 927,241
- Recamán's sequence
- a(222,958) = 142,729
- Square (n²)
- 20,371,567,441
- Cube (n³)
- 2,907,613,449,286,489
- Divisor count
- 4
- σ(n) — sum of divisors
- 145,476
- φ(n) — Euler's totient
- 139,984
- Sum of prime factors
- 2,746
Primality
Prime factorization: 53 × 2693
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,729 = [377; (1, 3, 1, 7, 14, 7, 1, 3, 1, 754)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand seven hundred twenty-nine
- Ordinal
- 142729th
- Binary
- 100010110110001001
- Octal
- 426611
- Hexadecimal
- 0x22D89
- Base64
- Ai2J
- One's complement
- 4,294,824,566 (32-bit)
- Scientific notation
- 1.42729 × 10⁵
- As a duration
- 142,729 s = 1 day, 15 hours, 38 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβψκθʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋰·𝋩
- Chinese
- 一十四萬二千七百二十九
- Chinese (financial)
- 壹拾肆萬貳仟柒佰貳拾玖
Also seen as
UTF-8 encoding: F0 A2 B6 89 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.137.
- Address
- 0.2.45.137
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.137
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 142,729 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 142729 first appears in π at position 394,371 of the decimal expansion (the 394,371ordinal-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.