162,142
162,142 is a composite number, even.
162,142 (one hundred sixty-two thousand one hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 81,071. Written other ways, in hexadecimal, 0x2795E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 96
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 241,261
- Recamán's sequence
- a(197,872) = 162,142
- Square (n²)
- 26,290,028,164
- Cube (n³)
- 4,262,717,746,567,288
- Divisor count
- 4
- σ(n) — sum of divisors
- 243,216
- φ(n) — Euler's totient
- 81,070
- Sum of prime factors
- 81,073
Primality
Prime factorization: 2 × 81071
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√162,142 = [402; (1, 2, 57, 5, 4, 16, 5, 14, 1, 2, 1, 1, 10, 1, 3, 2, 1, 7, 4, 1, 14, 2, 1, 1, …)]
Representations
- In words
- one hundred sixty-two thousand one hundred forty-two
- Ordinal
- 162142nd
- Binary
- 100111100101011110
- Octal
- 474536
- Hexadecimal
- 0x2795E
- Base64
- Anle
- One's complement
- 4,294,805,153 (32-bit)
- Scientific notation
- 1.62142 × 10⁵
- As a duration
- 162,142 s = 1 day, 21 hours, 2 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρξβρμβʹ
- Chinese
- 一十六萬二千一百四十二
- Chinese (financial)
- 壹拾陸萬貳仟壹佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 162142, here are decompositions:
- 23 + 162119 = 162142
- 83 + 162059 = 162142
- 89 + 162053 = 162142
- 131 + 162011 = 162142
- 173 + 161969 = 162142
- 263 + 161879 = 162142
- 269 + 161873 = 162142
- 311 + 161831 = 162142
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 A5 9E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.121.94.
- Address
- 0.2.121.94
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.121.94
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 162,142 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 162142 first appears in π at position 199,917 of the decimal expansion (the 199,917ordinal-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°.