122,442
122,442 is a composite number, even.
122,442 (one hundred twenty-two thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 20,407. Its proper divisors sum to 122,454, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1DE4A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 128
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 244,221
- Square (n²)
- 14,992,043,364
- Cube (n³)
- 1,835,655,773,574,888
- Divisor count
- 8
- σ(n) — sum of divisors
- 244,896
- φ(n) — Euler's totient
- 40,812
- Sum of prime factors
- 20,412
Primality
Prime factorization: 2 × 3 × 20407
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,442 = [349; (1, 11, 14, 1, 4, 5, 1, 2, 1, 2, 9, 2, 29, 1, 20, 4, 5, 1, 17, 1, 1, 2, 1, 3, …)]
Representations
- In words
- one hundred twenty-two thousand four hundred forty-two
- Ordinal
- 122442nd
- Binary
- 11101111001001010
- Octal
- 357112
- Hexadecimal
- 0x1DE4A
- Base64
- Ad5K
- One's complement
- 4,294,844,853 (32-bit)
- Scientific notation
- 1.22442 × 10⁵
- As a duration
- 122,442 s = 1 day, 10 hours, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκβυμβʹ
- Mayan (base 20)
- 𝋯·𝋦·𝋢·𝋢
- Chinese
- 一十二萬二千四百四十二
- Chinese (financial)
- 壹拾貳萬貳仟肆佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122442, here are decompositions:
- 41 + 122401 = 122442
- 43 + 122399 = 122442
- 53 + 122389 = 122442
- 79 + 122363 = 122442
- 163 + 122279 = 122442
- 179 + 122263 = 122442
- 191 + 122251 = 122442
- 211 + 122231 = 122442
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.222.74.
- Address
- 0.1.222.74
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.222.74
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 122,442 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 122442 first appears in π at position 206,593 of the decimal expansion (the 206,593ordinal-suffix:rd 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°.