122,428
122,428 is a composite number, even.
122,428 (one hundred twenty-two thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 127 × 241. Written other ways, in hexadecimal, 0x1DE3C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 256
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 824,221
- Square (n²)
- 14,988,615,184
- Cube (n³)
- 1,835,026,179,746,752
- Divisor count
- 12
- σ(n) — sum of divisors
- 216,832
- φ(n) — Euler's totient
- 60,480
- Sum of prime factors
- 372
Primality
Prime factorization: 2 2 × 127 × 241
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,428 = [349; (1, 8, 1, 2, 1, 1, 2, 1, 1, 3, 2, 1, 2, 5, 2, 2, 2, 1, 4, 1, 57, 2, 28, 1, …)]
Representations
- In words
- one hundred twenty-two thousand four hundred twenty-eight
- Ordinal
- 122428th
- Binary
- 11101111000111100
- Octal
- 357074
- Hexadecimal
- 0x1DE3C
- Base64
- Ad48
- One's complement
- 4,294,844,867 (32-bit)
- Scientific notation
- 1.22428 × 10⁵
- As a duration
- 122,428 s = 1 day, 10 hours, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 · 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκβυκηʹ
- Mayan (base 20)
- 𝋯·𝋦·𝋡·𝋨
- Chinese
- 一十二萬二千四百二十八
- Chinese (financial)
- 壹拾貳萬貳仟肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122428, here are decompositions:
- 29 + 122399 = 122428
- 41 + 122387 = 122428
- 101 + 122327 = 122428
- 107 + 122321 = 122428
- 149 + 122279 = 122428
- 197 + 122231 = 122428
- 227 + 122201 = 122428
- 281 + 122147 = 122428
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.222.60.
- Address
- 0.1.222.60
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.222.60
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 122,428 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 122428 first appears in π at position 840,900 of the decimal expansion (the 840,900ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.