133,638
133,638 is a composite number, even.
133,638 (one hundred thirty-three thousand six hundred thirty-eight) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 22,273. Its proper divisors sum to 133,650, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20A06.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 1,296
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 836,331
- Square (n²)
- 17,859,115,044
- Cube (n³)
- 2,386,656,416,250,072
- Divisor count
- 8
- σ(n) — sum of divisors
- 267,288
- φ(n) — Euler's totient
- 44,544
- Sum of prime factors
- 22,278
Primality
Prime factorization: 2 × 3 × 22273
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,638 = [365; (1, 1, 3, 3, 18, 1, 14, 1, 1, 1, 1, 4, 1, 1, 4, 1, 9, 1, 3, 2, 7, 1, 24, 3, …)]
Representations
- In words
- one hundred thirty-three thousand six hundred thirty-eight
- Ordinal
- 133638th
- Binary
- 100000101000000110
- Octal
- 405006
- Hexadecimal
- 0x20A06
- Base64
- AgoG
- One's complement
- 4,294,833,657 (32-bit)
- Scientific notation
- 1.33638 × 10⁵
- As a duration
- 133,638 s = 1 day, 13 hours, 7 minutes, 18 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλγχληʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋡·𝋲
- Chinese
- 一十三萬三千六百三十八
- Chinese (financial)
- 壹拾參萬參仟陸佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 133638, here are decompositions:
- 5 + 133633 = 133638
- 7 + 133631 = 133638
- 41 + 133597 = 133638
- 67 + 133571 = 133638
- 79 + 133559 = 133638
- 97 + 133541 = 133638
- 139 + 133499 = 133638
- 157 + 133481 = 133638
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 A8 86 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.6.
- Address
- 0.2.10.6
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.6
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 133,638 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 133638 first appears in π at position 339,754 of the decimal expansion (the 339,754ordinal-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°.