133,720
133,720 is a composite number, even.
133,720 (one hundred thirty-three thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 3,343. Its proper divisors sum to 167,240, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20A58.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 27,331
- Square (n²)
- 17,881,038,400
- Cube (n³)
- 2,391,052,454,848,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 300,960
- φ(n) — Euler's totient
- 53,472
- Sum of prime factors
- 3,354
Primality
Prime factorization: 2 3 × 5 × 3343
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,720 = [365; (1, 2, 9, 1, 29, 1, 1, 3, 13, 81, 5, 2, 1, 2, 1, 4, 3, 5, 1, 2, 1, 2, 1, 8, …)]
Representations
- In words
- one hundred thirty-three thousand seven hundred twenty
- Ordinal
- 133720th
- Binary
- 100000101001011000
- Octal
- 405130
- Hexadecimal
- 0x20A58
- Base64
- AgpY
- One's complement
- 4,294,833,575 (32-bit)
- Scientific notation
- 1.3372 × 10⁵
- As a duration
- 133,720 s = 1 day, 13 hours, 8 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρλγψκʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋦·𝋠
- Chinese
- 一十三萬三千七百二十
- Chinese (financial)
- 壹拾參萬參仟柒佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 133720, here are decompositions:
- 3 + 133717 = 133720
- 11 + 133709 = 133720
- 23 + 133697 = 133720
- 29 + 133691 = 133720
- 47 + 133673 = 133720
- 71 + 133649 = 133720
- 89 + 133631 = 133720
- 137 + 133583 = 133720
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 A9 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.88.
- Address
- 0.2.10.88
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.88
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 133,720 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.