165,164
165,164 is a composite number, even.
165,164 (one hundred sixty-five thousand one hundred sixty-four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 157 × 263. Written other ways, in hexadecimal, 0x2852C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 720
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 461,561
- Square (n²)
- 27,279,146,896
- Cube (n³)
- 4,505,533,017,930,944
- Divisor count
- 12
- σ(n) — sum of divisors
- 291,984
- φ(n) — Euler's totient
- 81,744
- Sum of prime factors
- 424
Primality
Prime factorization: 2 2 × 157 × 263
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√165,164 = [406; (2, 2, 10, 3, 2, 1, 1, 4, 1, 1, 2, 3, 10, 2, 2, 812)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-five thousand one hundred sixty-four
- Ordinal
- 165164th
- Binary
- 101000010100101100
- Octal
- 502454
- Hexadecimal
- 0x2852C
- Base64
- AoUs
- One's complement
- 4,294,802,131 (32-bit)
- Scientific notation
- 1.65164 × 10⁵
- As a duration
- 165,164 s = 1 day, 21 hours, 52 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρξερξδʹ
- Chinese
- 一十六萬五千一百六十四
- Chinese (financial)
- 壹拾陸萬伍仟壹佰陸拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 165164, here are decompositions:
- 3 + 165161 = 165164
- 31 + 165133 = 165164
- 61 + 165103 = 165164
- 127 + 165037 = 165164
- 163 + 165001 = 165164
- 211 + 164953 = 165164
- 271 + 164893 = 165164
- 283 + 164881 = 165164
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 94 AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.133.44.
- Address
- 0.2.133.44
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.133.44
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 165,164 and was likely granted around 1874.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 165164 first appears in π at position 418,179 of the decimal expansion (the 418,179ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.