133,868
133,868 is a composite number, even.
133,868 (one hundred thirty-three thousand eight hundred sixty-eight) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 7² × 683. Its proper divisors sum to 139,048, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20AEC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 3,456
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 868,331
- Square (n²)
- 17,920,641,424
- Cube (n³)
- 2,399,000,426,148,032
- Divisor count
- 18
- σ(n) — sum of divisors
- 272,916
- φ(n) — Euler's totient
- 57,288
- Sum of prime factors
- 701
Primality
Prime factorization: 2 2 × 7 2 × 683
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,868 = [365; (1, 7, 3, 6, 2, 1, 1, 5, 2, 4, 1, 7, 2, 182, 2, 7, 1, 4, 2, 5, 1, 1, 2, 6, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-three thousand eight hundred sixty-eight
- Ordinal
- 133868th
- Binary
- 100000101011101100
- Octal
- 405354
- Hexadecimal
- 0x20AEC
- Base64
- Agrs
- One's complement
- 4,294,833,427 (32-bit)
- Scientific notation
- 1.33868 × 10⁵
- As a duration
- 133,868 s = 1 day, 13 hours, 11 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλγωξηʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋭·𝋨
- Chinese
- 一十三萬三千八百六十八
- Chinese (financial)
- 壹拾參萬參仟捌佰陸拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 133868, here are decompositions:
- 37 + 133831 = 133868
- 67 + 133801 = 133868
- 151 + 133717 = 133868
- 157 + 133711 = 133868
- 199 + 133669 = 133868
- 211 + 133657 = 133868
- 271 + 133597 = 133868
- 349 + 133519 = 133868
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 AB AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.236.
- Address
- 0.2.10.236
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.236
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 133,868 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.