133,991
133,991 is a composite number, odd.
133,991 (one hundred thirty-three thousand nine hundred ninety-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 11 × 13 × 937. Written other ways, in hexadecimal, 0x20B67.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 729
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 199,331
- Square (n²)
- 17,953,588,081
- Cube (n³)
- 2,405,619,220,561,271
- Divisor count
- 8
- σ(n) — sum of divisors
- 157,584
- φ(n) — Euler's totient
- 112,320
- Sum of prime factors
- 961
Primality
Prime factorization: 11 × 13 × 937
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,991 = [366; (20, 1, 10, 1, 5, 1, 12, 2, 5, 9, 3, 13, 2, 28, 1, 4, 20, 1, 2, 1, 1, 14, 2, 1, …)]
Period length 56 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-three thousand nine hundred ninety-one
- Ordinal
- 133991st
- Binary
- 100000101101100111
- Octal
- 405547
- Hexadecimal
- 0x20B67
- Base64
- Agtn
- One's complement
- 4,294,833,304 (32-bit)
- Scientific notation
- 1.33991 × 10⁵
- As a duration
- 133,991 s = 1 day, 13 hours, 13 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλγϡϟαʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋳·𝋫
- Chinese
- 一十三萬三千九百九十一
- Chinese (financial)
- 壹拾參萬參仟玖佰玖拾壹
Also seen as
UTF-8 encoding: F0 A0 AD A7 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.11.103.
- Address
- 0.2.11.103
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.11.103
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 133,991 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 133991 first appears in π at position 588,838 of the decimal expansion (the 588,838ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.