168,000
168,000 is a composite number, even.
168,000 (one hundred sixty-eight thousand) is an even 6-digit number. It is a composite number with 112 divisors, and factors as 2⁶ × 3 × 5³ × 7. Its proper divisors sum to 465,984, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x29040.
Interestingness
Properties
Primality
Prime factorization: 2 6 × 3 × 5 3 × 7
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√168,000 = [409; (1, 7, 5, 32, 1, 1, 2, 7, 1, 3, 1, 31, 1, 203, 1, 31, 1, 3, 1, 7, 2, 1, 1, 32, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-eight thousand
- Ordinal
- 168000th
- Binary
- 101001000001000000
- Octal
- 510100
- Hexadecimal
- 0x29040
- Base64
- ApBA
- One's complement
- 4,294,799,295 (32-bit)
- Scientific notation
- 1.68 × 10⁵
- As a duration
- 168,000 s = 1 day, 22 hours, 40 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼
- Greek (Milesian)
- ͵ρξη
- Chinese
- 一十六萬八千
- Chinese (financial)
- 壹拾陸萬捌仟
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 168000, here are decompositions:
- 13 + 167987 = 168000
- 29 + 167971 = 168000
- 47 + 167953 = 168000
- 83 + 167917 = 168000
- 89 + 167911 = 168000
- 101 + 167899 = 168000
- 109 + 167891 = 168000
- 113 + 167887 = 168000
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A9 81 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.144.64.
- Address
- 0.2.144.64
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.144.64
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 168,000 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 168000 first appears in π at position 461,628 of the decimal expansion (the 461,628ordinal-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°.