125,742
125,742 is a composite number, even.
125,742 (one hundred twenty-five thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 19 × 1,103. Its proper divisors sum to 139,218, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1EB2E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 560
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 247,521
- Recamán's sequence
- a(234,680) = 125,742
- Square (n²)
- 15,811,050,564
- Cube (n³)
- 1,988,113,120,018,488
- Divisor count
- 16
- σ(n) — sum of divisors
- 264,960
- φ(n) — Euler's totient
- 39,672
- Sum of prime factors
- 1,127
Primality
Prime factorization: 2 × 3 × 19 × 1103
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,742 = [354; (1, 1, 1, 1, 33, 5, 1, 4, 1, 13, 1, 1, 1, 4, 2, 3, 1, 8, 1, 15, 1, 1, 2, 8, …)]
Period length 60 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-five thousand seven hundred forty-two
- Ordinal
- 125742nd
- Binary
- 11110101100101110
- Octal
- 365456
- Hexadecimal
- 0x1EB2E
- Base64
- Aesu
- One's complement
- 4,294,841,553 (32-bit)
- Scientific notation
- 1.25742 × 10⁵
- As a duration
- 125,742 s = 1 day, 10 hours, 55 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκεψμβʹ
- Mayan (base 20)
- 𝋯·𝋮·𝋧·𝋢
- Chinese
- 一十二萬五千七百四十二
- Chinese (financial)
- 壹拾貳萬伍仟柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 125742, here are decompositions:
- 5 + 125737 = 125742
- 11 + 125731 = 125742
- 31 + 125711 = 125742
- 59 + 125683 = 125742
- 73 + 125669 = 125742
- 83 + 125659 = 125742
- 101 + 125641 = 125742
- 103 + 125639 = 125742
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.235.46.
- Address
- 0.1.235.46
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.235.46
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 125,742 and was likely granted around 1871.
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°.