161,322
161,322 is a composite number, even.
161,322 (one hundred sixty-one thousand three hundred twenty-two) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 7 × 23 × 167. Its proper divisors sum to 225,750, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2762A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 72
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 223,161
- Recamán's sequence
- a(199,512) = 161,322
- Square (n²)
- 26,024,787,684
- Cube (n³)
- 4,198,370,798,758,248
- Divisor count
- 32
- σ(n) — sum of divisors
- 387,072
- φ(n) — Euler's totient
- 43,824
- Sum of prime factors
- 202
Primality
Prime factorization: 2 × 3 × 7 × 23 × 167
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√161,322 = [401; (1, 1, 1, 5, 1, 1, 1, 13, 4, 1, 46, 2, 4, 2, 46, 1, 4, 13, 1, 1, 1, 5, 1, 1, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-one thousand three hundred twenty-two
- Ordinal
- 161322nd
- Binary
- 100111011000101010
- Octal
- 473052
- Hexadecimal
- 0x2762A
- Base64
- AnYq
- One's complement
- 4,294,805,973 (32-bit)
- Scientific notation
- 1.61322 × 10⁵
- As a duration
- 161,322 s = 1 day, 20 hours, 48 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρξατκβʹ
- Chinese
- 一十六萬一千三百二十二
- Chinese (financial)
- 壹拾陸萬壹仟參佰貳拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 161322, here are decompositions:
- 13 + 161309 = 161322
- 19 + 161303 = 161322
- 41 + 161281 = 161322
- 59 + 161263 = 161322
- 89 + 161233 = 161322
- 101 + 161221 = 161322
- 163 + 161159 = 161322
- 173 + 161149 = 161322
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 98 AA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.118.42.
- Address
- 0.2.118.42
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.118.42
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 161,322 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 161322 first appears in π at position 126,896 of the decimal expansion (the 126,896ordinal-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°.