133,840
133,840 is a composite number, even.
133,840 (one hundred thirty-three thousand eight hundred forty) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 5 × 7 × 239. Its proper divisors sum to 223,280, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20AD0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 48,331
- Square (n²)
- 17,913,145,600
- Cube (n³)
- 2,397,495,407,104,000
- Divisor count
- 40
- σ(n) — sum of divisors
- 357,120
- φ(n) — Euler's totient
- 45,696
- Sum of prime factors
- 259
Primality
Prime factorization: 2 4 × 5 × 7 × 239
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,840 = [365; (1, 5, 3, 4, 4, 2, 1, 2, 2, 1, 3, 1, 8, 1, 5, 3, 1, 80, 1, 1, 6, 11, 3, 1, …)]
Representations
- In words
- one hundred thirty-three thousand eight hundred forty
- Ordinal
- 133840th
- Binary
- 100000101011010000
- Octal
- 405320
- Hexadecimal
- 0x20AD0
- Base64
- AgrQ
- One's complement
- 4,294,833,455 (32-bit)
- Scientific notation
- 1.3384 × 10⁵
- As a duration
- 133,840 s = 1 day, 13 hours, 10 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλγωμʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋬·𝋠
- Chinese
- 一十三萬三千八百四十
- Chinese (financial)
- 壹拾參萬參仟捌佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 133840, here are decompositions:
- 29 + 133811 = 133840
- 59 + 133781 = 133840
- 71 + 133769 = 133840
- 107 + 133733 = 133840
- 131 + 133709 = 133840
- 149 + 133691 = 133840
- 167 + 133673 = 133840
- 191 + 133649 = 133840
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 AB 90 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.208.
- Address
- 0.2.10.208
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.208
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 133,840 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.