166,742
166,742 is a composite number, even.
166,742 (one hundred sixty-six thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 263 × 317. Written other ways, in hexadecimal, 0x28B56.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 2,016
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 247,661
- Square (n²)
- 27,802,894,564
- Cube (n³)
- 4,635,910,245,390,488
- Divisor count
- 8
- σ(n) — sum of divisors
- 251,856
- φ(n) — Euler's totient
- 82,792
- Sum of prime factors
- 582
Primality
Prime factorization: 2 × 263 × 317
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√166,742 = [408; (2, 1, 14, 1, 2, 1, 7, 2, 1, 15, 1, 73, 3, 3, 2, 2, 2, 2, 1, 1, 1, 9, 4, 1, …)]
Representations
- In words
- one hundred sixty-six thousand seven hundred forty-two
- Ordinal
- 166742nd
- Binary
- 101000101101010110
- Octal
- 505526
- Hexadecimal
- 0x28B56
- Base64
- AotW
- One's complement
- 4,294,800,553 (32-bit)
- Scientific notation
- 1.66742 × 10⁵
- As a duration
- 166,742 s = 1 day, 22 hours, 19 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρξϛψμβʹ
- Chinese
- 一十六萬六千七百四十二
- Chinese (financial)
- 壹拾陸萬陸仟柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 166742, here are decompositions:
- 3 + 166739 = 166742
- 19 + 166723 = 166742
- 73 + 166669 = 166742
- 139 + 166603 = 166742
- 181 + 166561 = 166742
- 271 + 166471 = 166742
- 313 + 166429 = 166742
- 349 + 166393 = 166742
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 AD 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.139.86.
- Address
- 0.2.139.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.139.86
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 166,742 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 166742 first appears in π at position 142,850 of the decimal expansion (the 142,850ordinal-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°.