164,428
164,428 is a composite number, even.
164,428 (one hundred sixty-four thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 11 × 37 × 101. Written other ways, in hexadecimal, 0x2824C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 1,536
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 824,461
- Recamán's sequence
- a(473,159) = 164,428
- Square (n²)
- 27,036,567,184
- Cube (n³)
- 4,445,568,668,930,752
- Divisor count
- 24
- σ(n) — sum of divisors
- 325,584
- φ(n) — Euler's totient
- 72,000
- Sum of prime factors
- 153
Primality
Prime factorization: 2 2 × 11 × 37 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√164,428 = [405; (2, 89, 1, 1, 1, 1, 3, 9, 1, 2, 1, 3, 3, 2, 3, 2, 2, 3, 1, 1, 1, 1, 1, 23, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-four thousand four hundred twenty-eight
- Ordinal
- 164428th
- Binary
- 101000001001001100
- Octal
- 501114
- Hexadecimal
- 0x2824C
- Base64
- AoJM
- One's complement
- 4,294,802,867 (32-bit)
- Scientific notation
- 1.64428 × 10⁵
- As a duration
- 164,428 s = 1 day, 21 hours, 40 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρξδυκηʹ
- Chinese
- 一十六萬四千四百二十八
- Chinese (financial)
- 壹拾陸萬肆仟肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 164428, here are decompositions:
- 41 + 164387 = 164428
- 71 + 164357 = 164428
- 107 + 164321 = 164428
- 137 + 164291 = 164428
- 149 + 164279 = 164428
- 179 + 164249 = 164428
- 197 + 164231 = 164428
- 227 + 164201 = 164428
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 89 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.130.76.
- Address
- 0.2.130.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.130.76
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 164,428 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 164428 first appears in π at position 396,778 of the decimal expansion (the 396,778ordinal-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°.