125,442
125,442 is a composite number, even.
125,442 (one hundred twenty-five thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3³ × 23 × 101. Its proper divisors sum to 168,318, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1EA02.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 320
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 244,521
- Recamán's sequence
- a(235,280) = 125,442
- Square (n²)
- 15,735,695,364
- Cube (n³)
- 1,973,917,097,850,888
- Divisor count
- 32
- σ(n) — sum of divisors
- 293,760
- φ(n) — Euler's totient
- 39,600
- Sum of prime factors
- 135
Primality
Prime factorization: 2 × 3 3 × 23 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,442 = [354; (5, 1, 1, 1, 1, 1, 2, 1, 4, 2, 4, 5, 1, 1, 1, 2, 3, 22, 1, 1, 4, 8, 2, 2, …)]
Representations
- In words
- one hundred twenty-five thousand four hundred forty-two
- Ordinal
- 125442nd
- Binary
- 11110101000000010
- Octal
- 365002
- Hexadecimal
- 0x1EA02
- Base64
- AeoC
- One's complement
- 4,294,841,853 (32-bit)
- Scientific notation
- 1.25442 × 10⁵
- As a duration
- 125,442 s = 1 day, 10 hours, 50 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκευμβʹ
- Mayan (base 20)
- 𝋯·𝋭·𝋬·𝋢
- Chinese
- 一十二萬五千四百四十二
- Chinese (financial)
- 壹拾貳萬伍仟肆佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 125442, here are decompositions:
- 13 + 125429 = 125442
- 19 + 125423 = 125442
- 43 + 125399 = 125442
- 59 + 125383 = 125442
- 71 + 125371 = 125442
- 89 + 125353 = 125442
- 103 + 125339 = 125442
- 113 + 125329 = 125442
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.234.2.
- Address
- 0.1.234.2
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.234.2
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 125,442 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 125442 first appears in π at position 364,677 of the decimal expansion (the 364,677ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.