125,120
125,120 is a composite number, even.
125,120 (one hundred twenty-five thousand one hundred twenty) is an even 6-digit number. It is a composite number with 56 divisors, and factors as 2⁶ × 5 × 17 × 23. Its proper divisors sum to 204,064, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E8C0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 21,521
- Recamán's sequence
- a(235,924) = 125,120
- Square (n²)
- 15,655,014,400
- Cube (n³)
- 1,958,755,401,728,000
- Divisor count
- 56
- σ(n) — sum of divisors
- 329,184
- φ(n) — Euler's totient
- 45,056
- Sum of prime factors
- 57
Primality
Prime factorization: 2 6 × 5 × 17 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,120 = [353; (1, 2, 1, 1, 1, 1, 3, 10, 1, 3, 2, 13, 1, 175, 1, 13, 2, 3, 1, 10, 3, 1, 1, 1, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-five thousand one hundred twenty
- Ordinal
- 125120th
- Binary
- 11110100011000000
- Octal
- 364300
- Hexadecimal
- 0x1E8C0
- Base64
- AejA
- One's complement
- 4,294,842,175 (32-bit)
- Scientific notation
- 1.2512 × 10⁵
- As a duration
- 125,120 s = 1 day, 10 hours, 45 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκερκʹ
- Mayan (base 20)
- 𝋯·𝋬·𝋰·𝋠
- Chinese
- 一十二萬五千一百二十
- Chinese (financial)
- 壹拾貳萬伍仟壹佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 125120, here are decompositions:
- 3 + 125117 = 125120
- 7 + 125113 = 125120
- 13 + 125107 = 125120
- 19 + 125101 = 125120
- 67 + 125053 = 125120
- 103 + 125017 = 125120
- 139 + 124981 = 125120
- 211 + 124909 = 125120
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9E A3 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.232.192.
- Address
- 0.1.232.192
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.232.192
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 125,120 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 125120 first appears in π at position 217,142 of the decimal expansion (the 217,142ordinal-suffix:nd 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.