135,172
135,172 is a composite number, even.
135,172 (one hundred thirty-five thousand one hundred seventy-two) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 47 × 719. Written other ways, in hexadecimal, 0x21004.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 210
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 271,531
- Square (n²)
- 18,271,469,584
- Cube (n³)
- 2,469,791,086,608,448
- Divisor count
- 12
- σ(n) — sum of divisors
- 241,920
- φ(n) — Euler's totient
- 66,056
- Sum of prime factors
- 770
Primality
Prime factorization: 2 2 × 47 × 719
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√135,172 = [367; (1, 1, 1, 11, 2, 1, 1, 2, 1, 2, 5, 2, 2, 1, 2, 1, 1, 1, 4, 1, 14, 1, 4, 1, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-five thousand one hundred seventy-two
- Ordinal
- 135172nd
- Binary
- 100001000000000100
- Octal
- 410004
- Hexadecimal
- 0x21004
- Base64
- AhAE
- One's complement
- 4,294,832,123 (32-bit)
- Scientific notation
- 1.35172 × 10⁵
- As a duration
- 135,172 s = 1 day, 13 hours, 32 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλεροβʹ
- Mayan (base 20)
- 𝋰·𝋱·𝋲·𝋬
- Chinese
- 一十三萬五千一百七十二
- Chinese (financial)
- 壹拾參萬伍仟壹佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 135172, here are decompositions:
- 41 + 135131 = 135172
- 53 + 135119 = 135172
- 71 + 135101 = 135172
- 83 + 135089 = 135172
- 113 + 135059 = 135172
- 173 + 134999 = 135172
- 251 + 134921 = 135172
- 263 + 134909 = 135172
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 80 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.16.4.
- Address
- 0.2.16.4
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.16.4
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 135,172 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.