123,200
123,200 is a composite number, even.
123,200 (one hundred twenty-three thousand two hundred) is an even 6-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 5² × 7 × 11. Its proper divisors sum to 254,752, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E140.
Interestingness
Properties
Primality
Prime factorization: 2 6 × 5 2 × 7 × 11
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√123,200 = [350; (1, 700)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-three thousand two hundred
- Ordinal
- 123200th
- Binary
- 11110000101000000
- Octal
- 360500
- Hexadecimal
- 0x1E140
- Base64
- AeFA
- One's complement
- 4,294,844,095 (32-bit)
- Scientific notation
- 1.232 × 10⁵
- As a duration
- 123,200 s = 1 day, 10 hours, 13 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢
- Greek (Milesian)
- ͵ρκγσʹ
- Mayan (base 20)
- 𝋯·𝋨·𝋠·𝋠
- Chinese
- 一十二萬三千二百
- Chinese (financial)
- 壹拾貳萬參仟貳佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123200, here are decompositions:
- 31 + 123169 = 123200
- 73 + 123127 = 123200
- 79 + 123121 = 123200
- 109 + 123091 = 123200
- 151 + 123049 = 123200
- 193 + 123007 = 123200
- 199 + 123001 = 123200
- 229 + 122971 = 123200
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9E 85 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.225.64.
- Address
- 0.1.225.64
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.225.64
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 123,200 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 123200 first appears in π at position 664,073 of the decimal expansion (the 664,073ordinal-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.