165,080
165,080 is a composite number, even.
165,080 (one hundred sixty-five thousand eighty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 4,127. Its proper divisors sum to 206,440, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x284D8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 80,561
- Square (n²)
- 27,251,406,400
- Cube (n³)
- 4,498,662,168,512,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 371,520
- φ(n) — Euler's totient
- 66,016
- Sum of prime factors
- 4,138
Primality
Prime factorization: 2 3 × 5 × 4127
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√165,080 = [406; (3, 3, 25, 1, 10, 2, 14, 3, 2, 1, 2, 18, 10, 4, 3, 6, 2, 2, 4, 1, 39, 1, 4, 2, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-five thousand eighty
- Ordinal
- 165080th
- Binary
- 101000010011011000
- Octal
- 502330
- Hexadecimal
- 0x284D8
- Base64
- AoTY
- One's complement
- 4,294,802,215 (32-bit)
- Scientific notation
- 1.6508 × 10⁵
- As a duration
- 165,080 s = 1 day, 21 hours, 51 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρξεπʹ
- Chinese
- 一十六萬五千零八十
- Chinese (financial)
- 壹拾陸萬伍仟零捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 165080, here are decompositions:
- 31 + 165049 = 165080
- 43 + 165037 = 165080
- 79 + 165001 = 165080
- 127 + 164953 = 165080
- 199 + 164881 = 165080
- 241 + 164839 = 165080
- 271 + 164809 = 165080
- 313 + 164767 = 165080
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 93 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.132.216.
- Address
- 0.2.132.216
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.132.216
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 165,080 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 165080 first appears in π at position 806,138 of the decimal expansion (the 806,138ordinal-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°.