133,642
133,642 is a composite number, even.
133,642 (one hundred thirty-three thousand six hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 66,821. Written other ways, in hexadecimal, 0x20A0A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 432
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 246,331
- Square (n²)
- 17,860,184,164
- Cube (n³)
- 2,386,870,732,045,288
- Divisor count
- 4
- σ(n) — sum of divisors
- 200,466
- φ(n) — Euler's totient
- 66,820
- Sum of prime factors
- 66,823
Primality
Prime factorization: 2 × 66821
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,642 = [365; (1, 1, 3, 31, 1, 1, 80, 1, 2, 1, 2, 2, 1, 1, 2, 1, 17, 8, 1, 32, 2, 1, 9, 1, …)]
Representations
- In words
- one hundred thirty-three thousand six hundred forty-two
- Ordinal
- 133642nd
- Binary
- 100000101000001010
- Octal
- 405012
- Hexadecimal
- 0x20A0A
- Base64
- AgoK
- One's complement
- 4,294,833,653 (32-bit)
- Scientific notation
- 1.33642 × 10⁵
- As a duration
- 133,642 s = 1 day, 13 hours, 7 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλγχμβʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋢·𝋢
- Chinese
- 一十三萬三千六百四十二
- Chinese (financial)
- 壹拾參萬參仟陸佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 133642, here are decompositions:
- 11 + 133631 = 133642
- 59 + 133583 = 133642
- 71 + 133571 = 133642
- 83 + 133559 = 133642
- 101 + 133541 = 133642
- 149 + 133493 = 133642
- 191 + 133451 = 133642
- 239 + 133403 = 133642
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 A8 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.10.
- Address
- 0.2.10.10
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.10
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 133,642 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.