125,420
125,420 is a composite number, even.
125,420 (one hundred twenty-five thousand four hundred twenty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 6,271. Its proper divisors sum to 138,004, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E9EC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,521
- Recamán's sequence
- a(235,324) = 125,420
- Square (n²)
- 15,730,176,400
- Cube (n³)
- 1,972,878,724,088,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 263,424
- φ(n) — Euler's totient
- 50,160
- Sum of prime factors
- 6,280
Primality
Prime factorization: 2 2 × 5 × 6271
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√125,420 = [354; (6, 1, 4, 4, 5, 5, 1, 10, 1, 3, 2, 2, 11, 1, 1, 2, 8, 1, 11, 1, 63, 2, 7, 3, …)]
Representations
- In words
- one hundred twenty-five thousand four hundred twenty
- Ordinal
- 125420th
- Binary
- 11110100111101100
- Octal
- 364754
- Hexadecimal
- 0x1E9EC
- Base64
- Aens
- One's complement
- 4,294,841,875 (32-bit)
- Scientific notation
- 1.2542 × 10⁵
- As a duration
- 125,420 s = 1 day, 10 hours, 50 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκευκʹ
- Mayan (base 20)
- 𝋯·𝋭·𝋫·𝋠
- Chinese
- 一十二萬五千四百二十
- Chinese (financial)
- 壹拾貳萬伍仟肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 125420, here are decompositions:
- 13 + 125407 = 125420
- 37 + 125383 = 125420
- 67 + 125353 = 125420
- 109 + 125311 = 125420
- 151 + 125269 = 125420
- 199 + 125221 = 125420
- 223 + 125197 = 125420
- 271 + 125149 = 125420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.233.236.
- Address
- 0.1.233.236
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.233.236
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 125,420 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.