125,490
125,490 is a composite number, even.
125,490 (one hundred twenty-five thousand four hundred ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 47 × 89. Its proper divisors sum to 185,550, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1EA32.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 94,521
- Recamán's sequence
- a(235,184) = 125,490
- Square (n²)
- 15,747,740,100
- Cube (n³)
- 1,976,183,905,149,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 311,040
- φ(n) — Euler's totient
- 32,384
- Sum of prime factors
- 146
Primality
Prime factorization: 2 × 3 × 5 × 47 × 89
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,490 = [354; (4, 14, 4, 1, 3, 1, 1, 2, 17, 1, 3, 2, 5, 20, 1, 1, 1, 8, 3, 3, 1, 6, 1, 3, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-five thousand four hundred ninety
- Ordinal
- 125490th
- Binary
- 11110101000110010
- Octal
- 365062
- Hexadecimal
- 0x1EA32
- Base64
- Aeoy
- One's complement
- 4,294,841,805 (32-bit)
- Scientific notation
- 1.2549 × 10⁵
- As a duration
- 125,490 s = 1 day, 10 hours, 51 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρκευϟʹ
- Mayan (base 20)
- 𝋯·𝋭·𝋮·𝋪
- Chinese
- 一十二萬五千四百九十
- Chinese (financial)
- 壹拾貳萬伍仟肆佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 125490, here are decompositions:
- 19 + 125471 = 125490
- 37 + 125453 = 125490
- 61 + 125429 = 125490
- 67 + 125423 = 125490
- 83 + 125407 = 125490
- 103 + 125387 = 125490
- 107 + 125383 = 125490
- 137 + 125353 = 125490
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.234.50.
- Address
- 0.1.234.50
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.234.50
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 125,490 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 125490 first appears in π at position 371,238 of the decimal expansion (the 371,238ordinal-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°.