165,550
165,550 is a composite number, even.
165,550 (one hundred sixty-five thousand five hundred fifty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2 × 5² × 7 × 11 × 43. Its proper divisors sum to 227,282, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x286AE.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 55,561
- Square (n²)
- 27,406,802,500
- Cube (n³)
- 4,537,196,153,875,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 392,832
- φ(n) — Euler's totient
- 50,400
- Sum of prime factors
- 73
Primality
Prime factorization: 2 × 5 2 × 7 × 11 × 43
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√165,550 = [406; (1, 7, 4, 1, 1, 9, 2, 32, 13, 3, 4, 3, 13, 32, 2, 9, 1, 1, 4, 7, 1, 812)]
Period length 22 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-five thousand five hundred fifty
- Ordinal
- 165550th
- Binary
- 101000011010101110
- Octal
- 503256
- Hexadecimal
- 0x286AE
- Base64
- Aoau
- One's complement
- 4,294,801,745 (32-bit)
- Scientific notation
- 1.6555 × 10⁵
- As a duration
- 165,550 s = 1 day, 21 hours, 59 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρξεφνʹ
- Chinese
- 一十六萬五千五百五十
- Chinese (financial)
- 壹拾陸萬伍仟伍佰伍拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 165550, here are decompositions:
- 17 + 165533 = 165550
- 23 + 165527 = 165550
- 71 + 165479 = 165550
- 101 + 165449 = 165550
- 107 + 165443 = 165550
- 113 + 165437 = 165550
- 167 + 165383 = 165550
- 233 + 165317 = 165550
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 9A AE (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.134.174.
- Address
- 0.2.134.174
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.134.174
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 165,550 and was likely granted around 1874.
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°.