125,021
125,021 is a composite number, odd.
125,021 (one hundred twenty-five thousand twenty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 13 × 59 × 163. Written other ways, in hexadecimal, 0x1E85D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 120,521
- Recamán's sequence
- a(236,122) = 125,021
- Square (n²)
- 15,630,250,441
- Cube (n³)
- 1,954,109,540,384,261
- Divisor count
- 8
- σ(n) — sum of divisors
- 137,760
- φ(n) — Euler's totient
- 112,752
- Sum of prime factors
- 235
Primality
Prime factorization: 13 × 59 × 163
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,021 = [353; (1, 1, 2, 1, 1, 27, 1, 2, 2, 1, 2, 3, 4, 4, 1, 4, 1, 1, 30, 5, 54, 5, 30, 1, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-five thousand twenty-one
- Ordinal
- 125021st
- Binary
- 11110100001011101
- Octal
- 364135
- Hexadecimal
- 0x1E85D
- Base64
- Aehd
- One's complement
- 4,294,842,274 (32-bit)
- Scientific notation
- 1.25021 × 10⁵
- As a duration
- 125,021 s = 1 day, 10 hours, 43 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρκεκαʹ
- Mayan (base 20)
- 𝋯·𝋬·𝋫·𝋡
- Chinese
- 一十二萬五千零二十一
- Chinese (financial)
- 壹拾貳萬伍仟零貳拾壹
Also seen as
UTF-8 encoding: F0 9E A1 9D (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.232.93.
- Address
- 0.1.232.93
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.232.93
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 125,021 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.