133,445
133,445 is a composite number, odd.
133,445 (one hundred thirty-three thousand four hundred forty-five) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 5 × 13 × 2,053. Written other ways, in hexadecimal, 0x20945.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 720
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 544,331
- Recamán's sequence
- a(35,550) = 133,445
- Square (n²)
- 17,807,568,025
- Cube (n³)
- 2,376,330,915,096,125
- Divisor count
- 8
- σ(n) — sum of divisors
- 172,536
- φ(n) — Euler's totient
- 98,496
- Sum of prime factors
- 2,071
Primality
Prime factorization: 5 × 13 × 2053
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,445 = [365; (3, 3, 7, 1, 2, 1, 2, 5, 1, 14, 14, 1, 5, 2, 1, 2, 1, 7, 3, 3, 730)]
Period length 21 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-three thousand four hundred forty-five
- Ordinal
- 133445th
- Binary
- 100000100101000101
- Octal
- 404505
- Hexadecimal
- 0x20945
- Base64
- AglF
- One's complement
- 4,294,833,850 (32-bit)
- Scientific notation
- 1.33445 × 10⁵
- As a duration
- 133,445 s = 1 day, 13 hours, 4 minutes, 5 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλγυμεʹ
- Mayan (base 20)
- 𝋰·𝋭·𝋬·𝋥
- Chinese
- 一十三萬三千四百四十五
- Chinese (financial)
- 壹拾參萬參仟肆佰肆拾伍
Also seen as
UTF-8 encoding: F0 A0 A5 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.9.69.
- Address
- 0.2.9.69
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.9.69
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 133,445 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.