165,121
165,121 is a composite number, odd.
165,121 (one hundred sixty-five thousand one hundred twenty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 11 × 17 × 883. Written other ways, in hexadecimal, 0x28501.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 60
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 121,561
- Square (n²)
- 27,264,944,641
- Cube (n³)
- 4,502,014,924,066,561
- Divisor count
- 8
- σ(n) — sum of divisors
- 190,944
- φ(n) — Euler's totient
- 141,120
- Sum of prime factors
- 911
Primality
Prime factorization: 11 × 17 × 883
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√165,121 = [406; (2, 1, 5, 1, 2, 6, 1, 2, 1, 1, 10, 1, 2, 2, 18, 2, 8, 1, 5, 1, 7, 5, 4, 1, …)]
Period length 58 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-five thousand one hundred twenty-one
- Ordinal
- 165121st
- Binary
- 101000010100000001
- Octal
- 502401
- Hexadecimal
- 0x28501
- Base64
- AoUB
- One's complement
- 4,294,802,174 (32-bit)
- Scientific notation
- 1.65121 × 10⁵
- As a duration
- 165,121 s = 1 day, 21 hours, 52 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρξερκαʹ
- Chinese
- 一十六萬五千一百二十一
- Chinese (financial)
- 壹拾陸萬伍仟壹佰貳拾壹
Also seen as
UTF-8 encoding: F0 A8 94 81 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.133.1.
- Address
- 0.2.133.1
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.133.1
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 165,121 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.