170,442
170,442 is a composite number, even.
170,442 (one hundred seventy thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 17 × 557. Its proper divisors sum to 221,274, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x299CA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 244,071
- Recamán's sequence
- a(470,403) = 170,442
- Square (n²)
- 29,050,475,364
- Cube (n³)
- 4,951,421,121,990,888
- Divisor count
- 24
- σ(n) — sum of divisors
- 391,716
- φ(n) — Euler's totient
- 53,376
- Sum of prime factors
- 582
Primality
Prime factorization: 2 × 3 2 × 17 × 557
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√170,442 = [412; (1, 5, 1, 1, 91, 4, 1, 6, 1, 90, 1, 6, 1, 4, 91, 1, 1, 5, 1, 824)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- one hundred seventy thousand four hundred forty-two
- Ordinal
- 170442nd
- Binary
- 101001100111001010
- Octal
- 514712
- Hexadecimal
- 0x299CA
- Base64
- ApnK
- One's complement
- 4,294,796,853 (32-bit)
- Scientific notation
- 1.70442 × 10⁵
- As a duration
- 170,442 s = 1 day, 23 hours, 20 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρουμβʹ
- Chinese
- 一十七萬零四百四十二
- Chinese (financial)
- 壹拾柒萬零肆佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 170442, here are decompositions:
- 29 + 170413 = 170442
- 53 + 170389 = 170442
- 59 + 170383 = 170442
- 71 + 170371 = 170442
- 73 + 170369 = 170442
- 79 + 170363 = 170442
- 89 + 170353 = 170442
- 101 + 170341 = 170442
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A9 A7 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.153.202.
- Address
- 0.2.153.202
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.153.202
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 170,442 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 170442 first appears in π at position 937,465 of the decimal expansion (the 937,465ordinal-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°.