131,402
131,402 is a composite number, even.
131,402 (one hundred thirty-one thousand four hundred two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 65,701. Written other ways, in hexadecimal, 0x2014A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 204,131
- Recamán's sequence
- a(229,568) = 131,402
- Square (n²)
- 17,266,485,604
- Cube (n³)
- 2,268,850,741,336,808
- Divisor count
- 4
- σ(n) — sum of divisors
- 197,106
- φ(n) — Euler's totient
- 65,700
- Sum of prime factors
- 65,703
Primality
Prime factorization: 2 × 65701
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,402 = [362; (2, 42, 6, 1, 4, 2, 3, 3, 3, 2, 1, 18, 2, 1, 1, 1, 1, 1, 4, 5, 2, 31, 15, 2, …)]
Representations
- In words
- one hundred thirty-one thousand four hundred two
- Ordinal
- 131402nd
- Binary
- 100000000101001010
- Octal
- 400512
- Hexadecimal
- 0x2014A
- Base64
- AgFK
- One's complement
- 4,294,835,893 (32-bit)
- Scientific notation
- 1.31402 × 10⁵
- As a duration
- 131,402 s = 1 day, 12 hours, 30 minutes, 2 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓏺𓏺
- Greek (Milesian)
- ͵ρλαυβʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋪·𝋢
- Chinese
- 一十三萬一千四百零二
- Chinese (financial)
- 壹拾參萬壹仟肆佰零貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131402, here are decompositions:
- 31 + 131371 = 131402
- 109 + 131293 = 131402
- 151 + 131251 = 131402
- 181 + 131221 = 131402
- 199 + 131203 = 131402
- 331 + 131071 = 131402
- 379 + 131023 = 131402
- 421 + 130981 = 131402
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 85 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.74.
- Address
- 0.2.1.74
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.74
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 131,402 and was likely granted around 1872.
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.