168,142
168,142 is a composite number, even.
168,142 (one hundred sixty-eight thousand one hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 13 × 29 × 223. Written other ways, in hexadecimal, 0x290CE.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 384
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 241,861
- Square (n²)
- 28,271,732,164
- Cube (n³)
- 4,753,665,589,519,288
- Divisor count
- 16
- σ(n) — sum of divisors
- 282,240
- φ(n) — Euler's totient
- 74,592
- Sum of prime factors
- 267
Primality
Prime factorization: 2 × 13 × 29 × 223
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√168,142 = [410; (19, 1, 1, 9, 2, 21, 9, 2, 1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 1, 1, 1, 1, 1, 3, …)]
Representations
- In words
- one hundred sixty-eight thousand one hundred forty-two
- Ordinal
- 168142nd
- Binary
- 101001000011001110
- Octal
- 510316
- Hexadecimal
- 0x290CE
- Base64
- ApDO
- One's complement
- 4,294,799,153 (32-bit)
- Scientific notation
- 1.68142 × 10⁵
- As a duration
- 168,142 s = 1 day, 22 hours, 42 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρξηρμβʹ
- Chinese
- 一十六萬八千一百四十二
- Chinese (financial)
- 壹拾陸萬捌仟壹佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 168142, here are decompositions:
- 53 + 168089 = 168142
- 59 + 168083 = 168142
- 71 + 168071 = 168142
- 113 + 168029 = 168142
- 251 + 167891 = 168142
- 263 + 167879 = 168142
- 269 + 167873 = 168142
- 281 + 167861 = 168142
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A9 83 8E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.144.206.
- Address
- 0.2.144.206
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.144.206
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 168,142 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 168142 first appears in π at position 769,764 of the decimal expansion (the 769,764ordinal-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°.