125,428
125,428 is a composite number, even.
125,428 (one hundred twenty-five thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 31,357. Written other ways, in hexadecimal, 0x1E9F4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 640
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 824,521
- Recamán's sequence
- a(235,308) = 125,428
- Square (n²)
- 15,732,183,184
- Cube (n³)
- 1,973,256,272,402,752
- Divisor count
- 6
- σ(n) — sum of divisors
- 219,506
- φ(n) — Euler's totient
- 62,712
- Sum of prime factors
- 31,361
Primality
Prime factorization: 2 2 × 31357
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,428 = [354; (6, 3, 10, 3, 1, 9, 1, 1, 25, 1, 2, 2, 3, 1, 8, 5, 4, 1, 2, 1, 1, 1, 1, 2, …)]
Representations
- In words
- one hundred twenty-five thousand four hundred twenty-eight
- Ordinal
- 125428th
- Binary
- 11110100111110100
- Octal
- 364764
- Hexadecimal
- 0x1E9F4
- Base64
- Aen0
- One's complement
- 4,294,841,867 (32-bit)
- Scientific notation
- 1.25428 × 10⁵
- As a duration
- 125,428 s = 1 day, 10 hours, 50 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκευκηʹ
- Mayan (base 20)
- 𝋯·𝋭·𝋫·𝋨
- Chinese
- 一十二萬五千四百二十八
- Chinese (financial)
- 壹拾貳萬伍仟肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 125428, here are decompositions:
- 5 + 125423 = 125428
- 29 + 125399 = 125428
- 41 + 125387 = 125428
- 89 + 125339 = 125428
- 167 + 125261 = 125428
- 197 + 125231 = 125428
- 227 + 125201 = 125428
- 311 + 125117 = 125428
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.233.244.
- Address
- 0.1.233.244
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.233.244
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 125,428 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.