129,104
129,104 is a composite number, even.
129,104 (one hundred twenty-nine thousand one hundred four) is an even 6-digit number. It is a composite number with 10 divisors, and factors as 2⁴ × 8,069. Written other ways, in hexadecimal, 0x1F850.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 401,921
- Recamán's sequence
- a(231,432) = 129,104
- Square (n²)
- 16,667,842,816
- Cube (n³)
- 2,151,885,178,916,864
- Divisor count
- 10
- σ(n) — sum of divisors
- 250,170
- φ(n) — Euler's totient
- 64,544
- Sum of prime factors
- 8,077
Primality
Prime factorization: 2 4 × 8069
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√129,104 = [359; (3, 4, 1, 1, 10, 1, 2, 10, 1, 2, 2, 10, 1, 4, 22, 1, 43, 1, 22, 4, 1, 10, 2, 2, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-nine thousand one hundred four
- Ordinal
- 129104th
- Binary
- 11111100001010000
- Octal
- 374120
- Hexadecimal
- 0x1F850
- Base64
- AfhQ
- One's complement
- 4,294,838,191 (32-bit)
- Scientific notation
- 1.29104 × 10⁵
- As a duration
- 129,104 s = 1 day, 11 hours, 51 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκθρδʹ
- Mayan (base 20)
- 𝋰·𝋢·𝋯·𝋤
- Chinese
- 一十二萬九千一百零四
- Chinese (financial)
- 壹拾貳萬玖仟壹佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 129104, here are decompositions:
- 7 + 129097 = 129104
- 43 + 129061 = 129104
- 67 + 129037 = 129104
- 103 + 129001 = 129104
- 163 + 128941 = 129104
- 181 + 128923 = 129104
- 271 + 128833 = 129104
- 337 + 128767 = 129104
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9F A1 90 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.248.80.
- Address
- 0.1.248.80
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.248.80
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 129,104 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 129104 first appears in π at position 7,876 of the decimal expansion (the 7,876ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.