123,500
123,500 is a composite number, even.
123,500 (one hundred twenty-three thousand five hundred) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 5³ × 13 × 19. Its proper divisors sum to 182,260, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E26C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 5,321
- Square (n²)
- 15,252,250,000
- Cube (n³)
- 1,883,652,875,000,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 305,760
- φ(n) — Euler's totient
- 43,200
- Sum of prime factors
- 51
Primality
Prime factorization: 2 2 × 5 3 × 13 × 19
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√123,500 = [351; (2, 2, 1, 6, 3, 5, 2, 27, 1, 1, 1, 10, 1, 6, 8, 1, 3, 27, 1, 5, 1, 174, 1, 5, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-three thousand five hundred
- Ordinal
- 123500th
- Binary
- 11110001001101100
- Octal
- 361154
- Hexadecimal
- 0x1E26C
- Base64
- AeJs
- One's complement
- 4,294,843,795 (32-bit)
- Scientific notation
- 1.235 × 10⁵
- As a duration
- 123,500 s = 1 day, 10 hours, 18 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρκγφʹ
- Mayan (base 20)
- 𝋯·𝋨·𝋯·𝋠
- Chinese
- 一十二萬三千五百
- Chinese (financial)
- 壹拾貳萬參仟伍佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123500, here are decompositions:
- 7 + 123493 = 123500
- 43 + 123457 = 123500
- 61 + 123439 = 123500
- 67 + 123433 = 123500
- 73 + 123427 = 123500
- 103 + 123397 = 123500
- 127 + 123373 = 123500
- 193 + 123307 = 123500
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.226.108.
- Address
- 0.1.226.108
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.226.108
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 123,500 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 123500 first appears in π at position 965,580 of the decimal expansion (the 965,580ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.