163,442
163,442 is a composite number, even.
163,442 (one hundred sixty-three thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 71 × 1,151. Written other ways, in hexadecimal, 0x27E72.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 576
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 244,361
- Square (n²)
- 26,713,287,364
- Cube (n³)
- 4,366,073,113,346,888
- Divisor count
- 8
- σ(n) — sum of divisors
- 248,832
- φ(n) — Euler's totient
- 80,500
- Sum of prime factors
- 1,224
Primality
Prime factorization: 2 × 71 × 1151
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√163,442 = [404; (3, 1, 1, 2, 1, 3, 2, 1, 10, 1, 2, 3, 1, 2, 1, 1, 3, 808)]
Period length 18 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-three thousand four hundred forty-two
- Ordinal
- 163442nd
- Binary
- 100111111001110010
- Octal
- 477162
- Hexadecimal
- 0x27E72
- Base64
- An5y
- One's complement
- 4,294,803,853 (32-bit)
- Scientific notation
- 1.63442 × 10⁵
- As a duration
- 163,442 s = 1 day, 21 hours, 24 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρξγυμβʹ
- Chinese
- 一十六萬三千四百四十二
- Chinese (financial)
- 壹拾陸萬參仟肆佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 163442, here are decompositions:
- 31 + 163411 = 163442
- 79 + 163363 = 163442
- 193 + 163249 = 163442
- 199 + 163243 = 163442
- 271 + 163171 = 163442
- 313 + 163129 = 163442
- 379 + 163063 = 163442
- 421 + 163021 = 163442
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 B9 B2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.126.114.
- Address
- 0.2.126.114
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.126.114
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 163,442 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 163442 first appears in π at position 884,620 of the decimal expansion (the 884,620ordinal-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°.