129,804
129,804 is a composite number, even.
129,804 (one hundred twenty-nine thousand eight hundred four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 29 × 373. Its proper divisors sum to 184,356, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FB0C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 408,921
- Recamán's sequence
- a(496,895) = 129,804
- Square (n²)
- 16,849,078,416
- Cube (n³)
- 2,187,077,774,710,464
- Divisor count
- 24
- σ(n) — sum of divisors
- 314,160
- φ(n) — Euler's totient
- 41,664
- Sum of prime factors
- 409
Primality
Prime factorization: 2 2 × 3 × 29 × 373
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√129,804 = [360; (3, 1, 1, 7, 1, 1, 1, 1, 1, 1, 3, 2, 2, 3, 1, 5, 1, 5, 6, 1, 1, 3, 2, 3, …)]
Period length 58 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-nine thousand eight hundred four
- Ordinal
- 129804th
- Binary
- 11111101100001100
- Octal
- 375414
- Hexadecimal
- 0x1FB0C
- Base64
- AfsM
- One's complement
- 4,294,837,491 (32-bit)
- Scientific notation
- 1.29804 × 10⁵
- As a duration
- 129,804 s = 1 day, 12 hours, 3 minutes, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκθωδʹ
- Mayan (base 20)
- 𝋰·𝋤·𝋪·𝋤
- Chinese
- 一十二萬九千八百零四
- Chinese (financial)
- 壹拾貳萬玖仟捌佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 129804, here are decompositions:
- 11 + 129793 = 129804
- 41 + 129763 = 129804
- 47 + 129757 = 129804
- 67 + 129737 = 129804
- 71 + 129733 = 129804
- 97 + 129707 = 129804
- 163 + 129641 = 129804
- 173 + 129631 = 129804
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9F AC 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.251.12.
- Address
- 0.1.251.12
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.251.12
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 129,804 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.