165,428
165,428 is a composite number, even.
165,428 (one hundred sixty-five thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 41,357. Written other ways, in hexadecimal, 0x28634.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 1,920
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 824,561
- Square (n²)
- 27,366,423,184
- Cube (n³)
- 4,527,172,654,482,752
- Divisor count
- 6
- σ(n) — sum of divisors
- 289,506
- φ(n) — Euler's totient
- 82,712
- Sum of prime factors
- 41,361
Primality
Prime factorization: 2 2 × 41357
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√165,428 = [406; (1, 2, 1, 2, 6, 1, 8, 1, 14, 1, 2, 1, 11, 4, 1, 1, 1, 1, 1, 1, 3, 4, 1, 1, …)]
Representations
- In words
- one hundred sixty-five thousand four hundred twenty-eight
- Ordinal
- 165428th
- Binary
- 101000011000110100
- Octal
- 503064
- Hexadecimal
- 0x28634
- Base64
- AoY0
- One's complement
- 4,294,801,867 (32-bit)
- Scientific notation
- 1.65428 × 10⁵
- As a duration
- 165,428 s = 1 day, 21 hours, 57 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρξευκηʹ
- Chinese
- 一十六萬五千四百二十八
- Chinese (financial)
- 壹拾陸萬伍仟肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 165428, here are decompositions:
- 31 + 165397 = 165428
- 37 + 165391 = 165428
- 61 + 165367 = 165428
- 79 + 165349 = 165428
- 97 + 165331 = 165428
- 181 + 165247 = 165428
- 199 + 165229 = 165428
- 349 + 165079 = 165428
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 98 B4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.134.52.
- Address
- 0.2.134.52
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.134.52
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 165,428 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 165428 first appears in π at position 851,125 of the decimal expansion (the 851,125ordinal-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°.