123,090
123,090 is a composite number, even.
123,090 (one hundred twenty-three thousand ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 11 × 373. Its proper divisors sum to 200,046, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E0D2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 90,321
- Square (n²)
- 15,151,148,100
- Cube (n³)
- 1,864,954,819,629,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 323,136
- φ(n) — Euler's totient
- 29,760
- Sum of prime factors
- 394
Primality
Prime factorization: 2 × 3 × 5 × 11 × 373
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√123,090 = [350; (1, 5, 3, 10, 3, 5, 1, 700)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-three thousand ninety
- Ordinal
- 123090th
- Binary
- 11110000011010010
- Octal
- 360322
- Hexadecimal
- 0x1E0D2
- Base64
- AeDS
- One's complement
- 4,294,844,205 (32-bit)
- Scientific notation
- 1.2309 × 10⁵
- As a duration
- 123,090 s = 1 day, 10 hours, 11 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρκγϟʹ
- Mayan (base 20)
- 𝋯·𝋧·𝋮·𝋪
- Chinese
- 一十二萬三千零九十
- Chinese (financial)
- 壹拾貳萬參仟零玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123090, here are decompositions:
- 7 + 123083 = 123090
- 13 + 123077 = 123090
- 31 + 123059 = 123090
- 41 + 123049 = 123090
- 59 + 123031 = 123090
- 73 + 123017 = 123090
- 83 + 123007 = 123090
- 89 + 123001 = 123090
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.224.210.
- Address
- 0.1.224.210
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.224.210
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 123,090 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 123090 first appears in π at position 638,325 of the decimal expansion (the 638,325ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.