122,990
122,990 is a composite number, even.
122,990 (one hundred twenty-two thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 5 × 7² × 251. Its proper divisors sum to 135,562, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E06E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 99,221
- Square (n²)
- 15,126,540,100
- Cube (n³)
- 1,860,413,166,899,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 258,552
- φ(n) — Euler's totient
- 42,000
- Sum of prime factors
- 272
Primality
Prime factorization: 2 × 5 × 7 2 × 251
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,990 = [350; (1, 2, 3, 14, 70, 14, 3, 2, 1, 700)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-two thousand nine hundred ninety
- Ordinal
- 122990th
- Binary
- 11110000001101110
- Octal
- 360156
- Hexadecimal
- 0x1E06E
- Base64
- AeBu
- One's complement
- 4,294,844,305 (32-bit)
- Scientific notation
- 1.2299 × 10⁵
- As a duration
- 122,990 s = 1 day, 10 hours, 9 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρκβϡϟʹ
- Mayan (base 20)
- 𝋯·𝋧·𝋩·𝋪
- Chinese
- 一十二萬二千九百九十
- Chinese (financial)
- 壹拾貳萬貳仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122990, here are decompositions:
- 19 + 122971 = 122990
- 37 + 122953 = 122990
- 61 + 122929 = 122990
- 103 + 122887 = 122990
- 151 + 122839 = 122990
- 157 + 122833 = 122990
- 163 + 122827 = 122990
- 229 + 122761 = 122990
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.224.110.
- Address
- 0.1.224.110
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.224.110
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 122,990 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 122990 first appears in π at position 466,483 of the decimal expansion (the 466,483ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.