135,990
135,990 is a composite number, even.
135,990 (one hundred thirty-five thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 5 × 1,511. Its proper divisors sum to 217,818, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21336.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 99,531
- Square (n²)
- 18,493,280,100
- Cube (n³)
- 2,514,901,160,799,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 353,808
- φ(n) — Euler's totient
- 36,240
- Sum of prime factors
- 1,524
Primality
Prime factorization: 2 × 3 2 × 5 × 1511
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√135,990 = [368; (1, 3, 3, 5, 1, 1, 4, 1, 24, 1, 1, 1, 1, 2, 1, 1, 4, 2, 8, 7, 1, 72, 1, 7, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-five thousand nine hundred ninety
- Ordinal
- 135990th
- Binary
- 100001001100110110
- Octal
- 411466
- Hexadecimal
- 0x21336
- Base64
- AhM2
- One's complement
- 4,294,831,305 (32-bit)
- Scientific notation
- 1.3599 × 10⁵
- As a duration
- 135,990 s = 1 day, 13 hours, 46 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλεϡϟʹ
- Mayan (base 20)
- 𝋰·𝋳·𝋳·𝋪
- Chinese
- 一十三萬五千九百九十
- Chinese (financial)
- 壹拾參萬伍仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 135990, here are decompositions:
- 11 + 135979 = 135990
- 13 + 135977 = 135990
- 53 + 135937 = 135990
- 61 + 135929 = 135990
- 79 + 135911 = 135990
- 97 + 135893 = 135990
- 103 + 135887 = 135990
- 131 + 135859 = 135990
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 8C B6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.19.54.
- Address
- 0.2.19.54
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.19.54
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 135,990 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.