164,421
164,421 is a composite number, odd.
164,421 (one hundred sixty-four thousand four hundred twenty-one) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 3² × 18,269. Written other ways, in hexadecimal, 0x28245.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 192
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 124,461
- Recamán's sequence
- a(52,074) = 164,421
- Square (n²)
- 27,034,265,241
- Cube (n³)
- 4,445,000,925,190,461
- Divisor count
- 6
- σ(n) — sum of divisors
- 237,510
- φ(n) — Euler's totient
- 109,608
- Sum of prime factors
- 18,275
Primality
Prime factorization: 3 2 × 18269
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√164,421 = [405; (2, 21, 2, 2, 1, 1, 2, 1, 89, 2, 1, 1, 2, 1, 1, 1, 2, 2, 18, 90, 18, 2, 2, 1, …)]
Period length 40 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-four thousand four hundred twenty-one
- Ordinal
- 164421st
- Binary
- 101000001001000101
- Octal
- 501105
- Hexadecimal
- 0x28245
- Base64
- AoJF
- One's complement
- 4,294,802,874 (32-bit)
- Scientific notation
- 1.64421 × 10⁵
- As a duration
- 164,421 s = 1 day, 21 hours, 40 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρξδυκαʹ
- Chinese
- 一十六萬四千四百二十一
- Chinese (financial)
- 壹拾陸萬肆仟肆佰貳拾壹
Also seen as
UTF-8 encoding: F0 A8 89 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.130.69.
- Address
- 0.2.130.69
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.130.69
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 164,421 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.