142,129
142,129 is a composite number, odd.
142,129 (one hundred forty-two thousand one hundred twenty-nine) is an odd 6-digit number. It is a composite number with 9 divisors, and factors as 13² × 29². It is a perfect square (377²). Written other ways, in hexadecimal, 0x22B31.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 144
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 921,241
- Recamán's sequence
- a(484,569) = 142,129
- Square (n²)
- 20,200,652,641
- Cube (n³)
- 2,871,098,559,212,689
- Square root (√n)
- 377
- Divisor count
- 9
- σ(n) — sum of divisors
- 159,393
- φ(n) — Euler's totient
- 126,672
- Sum of prime factors
- 84
Primality
Prime factorization: 13 2 × 29 2
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred forty-two thousand one hundred twenty-nine
- Ordinal
- 142129th
- Binary
- 100010101100110001
- Octal
- 425461
- Hexadecimal
- 0x22B31
- Base64
- Aisx
- One's complement
- 4,294,825,166 (32-bit)
- Scientific notation
- 1.42129 × 10⁵
- As a duration
- 142,129 s = 1 day, 15 hours, 28 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβρκθʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋦·𝋩
- Chinese
- 一十四萬二千一百二十九
- Chinese (financial)
- 壹拾肆萬貳仟壹佰貳拾玖
Also seen as
UTF-8 encoding: F0 A2 AC B1 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.49.
- Address
- 0.2.43.49
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.49
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 142,129 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 142129 first appears in π at position 653,920 of the decimal expansion (the 653,920ordinal-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.