161,008
161,008 is a composite number, even.
161,008 (one hundred sixty-one thousand eight) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 29 × 347. Its proper divisors sum to 162,632, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x274F0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 800,161
- Flips to (rotate 180°)
- 800,191
- Recamán's sequence
- a(200,140) = 161,008
- Square (n²)
- 25,923,576,064
- Cube (n³)
- 4,173,903,134,912,512
- Divisor count
- 20
- σ(n) — sum of divisors
- 323,640
- φ(n) — Euler's totient
- 77,504
- Sum of prime factors
- 384
Primality
Prime factorization: 2 4 × 29 × 347
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√161,008 = [401; (3, 1, 7, 24, 5, 3, 1, 1, 1, 15, 1, 2, 1, 5, 2, 9, 2, 4, 3, 1, 1, 1, 7, 1, …)]
Representations
- In words
- one hundred sixty-one thousand eight
- Ordinal
- 161008th
- Binary
- 100111010011110000
- Octal
- 472360
- Hexadecimal
- 0x274F0
- Base64
- AnTw
- One's complement
- 4,294,806,287 (32-bit)
- Scientific notation
- 1.61008 × 10⁵
- As a duration
- 161,008 s = 1 day, 20 hours, 43 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρξαηʹ
- Chinese
- 一十六萬一千零八
- Chinese (financial)
- 壹拾陸萬壹仟零捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 161008, here are decompositions:
- 11 + 160997 = 161008
- 41 + 160967 = 161008
- 101 + 160907 = 161008
- 131 + 160877 = 161008
- 167 + 160841 = 161008
- 179 + 160829 = 161008
- 191 + 160817 = 161008
- 227 + 160781 = 161008
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 93 B0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.116.240.
- Address
- 0.2.116.240
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.116.240
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 161,008 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 161008 first appears in π at position 285,690 of the decimal expansion (the 285,690ordinal-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°.