122,402
122,402 is a composite number, even.
122,402 (one hundred twenty-two thousand four hundred two) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2 × 7² × 1,249. Written other ways, in hexadecimal, 0x1DE22.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 204,221
- Square (n²)
- 14,982,249,604
- Cube (n³)
- 1,833,857,316,028,808
- Divisor count
- 12
- σ(n) — sum of divisors
- 213,750
- φ(n) — Euler's totient
- 52,416
- Sum of prime factors
- 1,265
Primality
Prime factorization: 2 × 7 2 × 1249
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,402 = [349; (1, 6, 7, 14, 7, 6, 1, 698)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-two thousand four hundred two
- Ordinal
- 122402nd
- Binary
- 11101111000100010
- Octal
- 357042
- Hexadecimal
- 0x1DE22
- Base64
- Ad4i
- One's complement
- 4,294,844,893 (32-bit)
- Scientific notation
- 1.22402 × 10⁵
- As a duration
- 122,402 s = 1 day, 10 hours, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 · 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺
- Greek (Milesian)
- ͵ρκβυβʹ
- Mayan (base 20)
- 𝋯·𝋦·𝋠·𝋢
- Chinese
- 一十二萬二千四百零二
- Chinese (financial)
- 壹拾貳萬貳仟肆佰零貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122402, here are decompositions:
- 3 + 122399 = 122402
- 13 + 122389 = 122402
- 79 + 122323 = 122402
- 103 + 122299 = 122402
- 139 + 122263 = 122402
- 151 + 122251 = 122402
- 193 + 122209 = 122402
- 199 + 122203 = 122402
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.222.34.
- Address
- 0.1.222.34
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.222.34
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 122,402 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.