167,428
167,428 is a composite number, even.
167,428 (one hundred sixty-seven thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 19 × 2,203. Written other ways, in hexadecimal, 0x28E04.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 28
- Digit product
- 2,688
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 824,761
- Recamán's sequence
- a(54,000) = 167,428
- Square (n²)
- 28,032,135,184
- Cube (n³)
- 4,693,364,329,586,752
- Divisor count
- 12
- σ(n) — sum of divisors
- 308,560
- φ(n) — Euler's totient
- 79,272
- Sum of prime factors
- 2,226
Primality
Prime factorization: 2 2 × 19 × 2203
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√167,428 = [409; (5, 1, 1, 3, 3, 2, 1, 2, 3, 1, 8, 4, 1, 1, 25, 1, 5, 2, 3, 7, 1, 4, 2, 1, …)]
Representations
- In words
- one hundred sixty-seven thousand four hundred twenty-eight
- Ordinal
- 167428th
- Binary
- 101000111000000100
- Octal
- 507004
- Hexadecimal
- 0x28E04
- Base64
- Ao4E
- One's complement
- 4,294,799,867 (32-bit)
- Scientific notation
- 1.67428 × 10⁵
- As a duration
- 167,428 s = 1 day, 22 hours, 30 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρξζυκηʹ
- Chinese
- 一十六萬七千四百二十八
- Chinese (financial)
- 壹拾陸萬柒仟肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 167428, here are decompositions:
- 5 + 167423 = 167428
- 47 + 167381 = 167428
- 89 + 167339 = 167428
- 167 + 167261 = 167428
- 179 + 167249 = 167428
- 251 + 167177 = 167428
- 269 + 167159 = 167428
- 311 + 167117 = 167428
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 B8 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.142.4.
- Address
- 0.2.142.4
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.142.4
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 167,428 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 167428 first appears in π at position 853,571 of the decimal expansion (the 853,571ordinal-suffix:st 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°.