161,321
161,321 is a composite number, odd.
161,321 (one hundred sixty-one thousand three hundred twenty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 353 × 457. Written other ways, in hexadecimal, 0x27629.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 36
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 123,161
- Recamán's sequence
- a(199,514) = 161,321
- Square (n²)
- 26,024,465,041
- Cube (n³)
- 4,198,292,724,879,161
- Divisor count
- 4
- σ(n) — sum of divisors
- 162,132
- φ(n) — Euler's totient
- 160,512
- Sum of prime factors
- 810
Primality
Prime factorization: 353 × 457
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√161,321 = [401; (1, 1, 1, 5, 4, 6, 27, 1, 1, 5, 1, 4, 2, 3, 1, 1, 3, 2, 4, 1, 5, 1, 1, 27, …)]
Period length 31 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-one thousand three hundred twenty-one
- Ordinal
- 161321st
- Binary
- 100111011000101001
- Octal
- 473051
- Hexadecimal
- 0x27629
- Base64
- AnYp
- One's complement
- 4,294,805,974 (32-bit)
- Scientific notation
- 1.61321 × 10⁵
- As a duration
- 161,321 s = 1 day, 20 hours, 48 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρξατκαʹ
- Chinese
- 一十六萬一千三百二十一
- Chinese (financial)
- 壹拾陸萬壹仟參佰貳拾壹
Also seen as
UTF-8 encoding: F0 A7 98 A9 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.118.41.
- Address
- 0.2.118.41
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.118.41
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 161,321 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 161321 first appears in π at position 728,462 of the decimal expansion (the 728,462ordinal-suffix:nd 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.