172,104
172,104 is a composite number, even.
172,104 (one hundred seventy-two thousand one hundred four) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 71 × 101. Its proper divisors sum to 268,536, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2A048.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 401,271
- Recamán's sequence
- a(191,556) = 172,104
- Square (n²)
- 29,619,786,816
- Cube (n³)
- 5,097,683,790,180,864
- Divisor count
- 32
- σ(n) — sum of divisors
- 440,640
- φ(n) — Euler's totient
- 56,000
- Sum of prime factors
- 181
Primality
Prime factorization: 2 3 × 3 × 71 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√172,104 = [414; (1, 5, 1, 6, 17, 1, 1, 32, 1, 2, 14, 2, 11, 1, 2, 1, 1, 4, 2, 1, 35, 2, 1, 1, …)]
Representations
- In words
- one hundred seventy-two thousand one hundred four
- Ordinal
- 172104th
- Binary
- 101010000001001000
- Octal
- 520110
- Hexadecimal
- 0x2A048
- Base64
- AqBI
- One's complement
- 4,294,795,191 (32-bit)
- Scientific notation
- 1.72104 × 10⁵
- As a duration
- 172,104 s = 1 day, 23 hours, 48 minutes, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ροβρδʹ
- Chinese
- 一十七萬二千一百零四
- Chinese (financial)
- 壹拾柒萬貳仟壹佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 172104, here are decompositions:
- 7 + 172097 = 172104
- 11 + 172093 = 172104
- 73 + 172031 = 172104
- 83 + 172021 = 172104
- 103 + 172001 = 172104
- 157 + 171947 = 172104
- 167 + 171937 = 172104
- 181 + 171923 = 172104
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 AA 81 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.160.72.
- Address
- 0.2.160.72
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.160.72
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 172,104 and was likely granted around 1874.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 172104 first appears in π at position 28,524 of the decimal expansion (the 28,524ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.