133,780
133,780 is a composite number, even.
133,780 (one hundred thirty-three thousand seven hundred eighty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 6,689. Its proper divisors sum to 147,200, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20A94.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 87,331
- Square (n²)
- 17,897,088,400
- Cube (n³)
- 2,394,272,486,152,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 280,980
- φ(n) — Euler's totient
- 53,504
- Sum of prime factors
- 6,698
Primality
Prime factorization: 2 2 × 5 × 6689
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,780 = [365; (1, 3, 6, 2, 1, 15, 1, 1, 2, 1, 19, 1, 1, 1, 1, 8, 2, 3, 36, 3, 2, 8, 1, 1, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-three thousand seven hundred eighty
- Ordinal
- 133780th
- Binary
- 100000101010010100
- Octal
- 405224
- Hexadecimal
- 0x20A94
- Base64
- AgqU
- One's complement
- 4,294,833,515 (32-bit)
- Scientific notation
- 1.3378 × 10⁵
- As a duration
- 133,780 s = 1 day, 13 hours, 9 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλγψπʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋩·𝋠
- Chinese
- 一十三萬三千七百八十
- Chinese (financial)
- 壹拾參萬參仟柒佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 133780, here are decompositions:
- 11 + 133769 = 133780
- 47 + 133733 = 133780
- 71 + 133709 = 133780
- 83 + 133697 = 133780
- 89 + 133691 = 133780
- 107 + 133673 = 133780
- 131 + 133649 = 133780
- 149 + 133631 = 133780
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 AA 94 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.148.
- Address
- 0.2.10.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.148
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 133,780 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.