135,920
135,920 is a composite number, even.
135,920 (one hundred thirty-five thousand nine hundred twenty) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 5 × 1,699. Its proper divisors sum to 180,280, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x212F0.
Interestingness
Properties
Primality
Prime factorization: 2 4 × 5 × 1699
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√135,920 = [368; (1, 2, 16, 2, 2, 1, 4, 5, 1, 7, 2, 4, 9, 9, 9, 4, 2, 7, 1, 5, 4, 1, 2, 2, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-five thousand nine hundred twenty
- Ordinal
- 135920th
- Binary
- 100001001011110000
- Octal
- 411360
- Hexadecimal
- 0x212F0
- Base64
- AhLw
- One's complement
- 4,294,831,375 (32-bit)
- Scientific notation
- 1.3592 × 10⁵
- As a duration
- 135,920 s = 1 day, 13 hours, 45 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρλεϡκʹ
- Mayan (base 20)
- 𝋰·𝋳·𝋰·𝋠
- Chinese
- 一十三萬五千九百二十
- Chinese (financial)
- 壹拾參萬伍仟玖佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 135920, here are decompositions:
- 7 + 135913 = 135920
- 61 + 135859 = 135920
- 79 + 135841 = 135920
- 139 + 135781 = 135920
- 163 + 135757 = 135920
- 193 + 135727 = 135920
- 199 + 135721 = 135920
- 223 + 135697 = 135920
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 8B B0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.18.240.
- Address
- 0.2.18.240
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.18.240
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 135,920 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 135920 first appears in π at position 20,108 of the decimal expansion (the 20,108ordinal-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.