173,142
173,142 is a composite number, even.
173,142 (one hundred seventy-three thousand one hundred forty-two) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2 × 3² × 9,619. Its proper divisors sum to 202,038, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2A456.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 168
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 241,371
- Square (n²)
- 29,978,152,164
- Cube (n³)
- 5,190,477,221,979,288
- Divisor count
- 12
- σ(n) — sum of divisors
- 375,180
- φ(n) — Euler's totient
- 57,708
- Sum of prime factors
- 9,627
Primality
Prime factorization: 2 × 3 2 × 9619
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√173,142 = [416; (9, 1, 2, 12, 13, 7, 1, 3, 2, 3, 2, 1, 1, 4, 1, 1, 15, 6, 1, 1, 5, 1, 2, 19, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred seventy-three thousand one hundred forty-two
- Ordinal
- 173142nd
- Binary
- 101010010001010110
- Octal
- 522126
- Hexadecimal
- 0x2A456
- Base64
- AqRW
- One's complement
- 4,294,794,153 (32-bit)
- Scientific notation
- 1.73142 × 10⁵
- As a duration
- 173,142 s = 2 days, 5 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρογρμβʹ
- Chinese
- 一十七萬三千一百四十二
- Chinese (financial)
- 壹拾柒萬參仟壹佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 173142, here are decompositions:
- 5 + 173137 = 173142
- 43 + 173099 = 173142
- 61 + 173081 = 173142
- 83 + 173059 = 173142
- 89 + 173053 = 173142
- 103 + 173039 = 173142
- 149 + 172993 = 173142
- 173 + 172969 = 173142
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 AA 91 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.164.86.
- Address
- 0.2.164.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.164.86
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 173,142 and was likely granted around 1874.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.