129,025
129,025 is a composite number, odd.
129,025 (one hundred twenty-nine thousand twenty-five) is an odd 6-digit number. It is a composite number with 12 divisors, and factors as 5² × 13 × 397. Written other ways, in hexadecimal, 0x1F801.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 520,921
- Recamán's sequence
- a(231,590) = 129,025
- Square (n²)
- 16,647,450,625
- Cube (n³)
- 2,147,937,316,890,625
- Divisor count
- 12
- σ(n) — sum of divisors
- 172,732
- φ(n) — Euler's totient
- 95,040
- Sum of prime factors
- 420
Primality
Prime factorization: 5 2 × 13 × 397
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√129,025 = [359; (4, 1, 79, 44, 1, 7, 1, 8, 4, 1, 7, 11, 10, 3, 9, 3, 1, 9, 1, 1, 1, 8, 1, 11, …)]
Representations
- In words
- one hundred twenty-nine thousand twenty-five
- Ordinal
- 129025th
- Binary
- 11111100000000001
- Octal
- 374001
- Hexadecimal
- 0x1F801
- Base64
- AfgB
- One's complement
- 4,294,838,270 (32-bit)
- Scientific notation
- 1.29025 × 10⁵
- As a duration
- 129,025 s = 1 day, 11 hours, 50 minutes, 25 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκθκεʹ
- Mayan (base 20)
- 𝋰·𝋢·𝋫·𝋥
- Chinese
- 一十二萬九千零二十五
- Chinese (financial)
- 壹拾貳萬玖仟零貳拾伍
Also seen as
UTF-8 encoding: F0 9F A0 81 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.248.1.
- Address
- 0.1.248.1
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.248.1
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 129,025 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.