130,220
130,220 is a composite number, even.
130,220 (one hundred thirty thousand two hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 17 × 383. Its proper divisors sum to 160,084, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FCAC.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 5 × 17 × 383
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,220 = [360; (1, 6, 6, 1, 3, 1, 11, 2, 3, 1, 1, 4, 3, 1, 1, 3, 1, 2, 2, 1, 2, 3, 6, 1, …)]
Period length 56 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand two hundred twenty
- Ordinal
- 130220th
- Binary
- 11111110010101100
- Octal
- 376254
- Hexadecimal
- 0x1FCAC
- Base64
- Afys
- One's complement
- 4,294,837,075 (32-bit)
- Scientific notation
- 1.3022 × 10⁵
- As a duration
- 130,220 s = 1 day, 12 hours, 10 minutes, 20 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρλσκʹ
- Mayan (base 20)
- 𝋰·𝋥·𝋫·𝋠
- Chinese
- 一十三萬零二百二十
- Chinese (financial)
- 壹拾參萬零貳佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130220, here are decompositions:
- 19 + 130201 = 130220
- 37 + 130183 = 130220
- 73 + 130147 = 130220
- 151 + 130069 = 130220
- 163 + 130057 = 130220
- 193 + 130027 = 130220
- 199 + 130021 = 130220
- 283 + 129937 = 130220
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.252.172.
- Address
- 0.1.252.172
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.252.172
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 130,220 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 130220 first appears in π at position 608,591 of the decimal expansion (the 608,591ordinal-suffix:st 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.