155,672
155,672 is a composite number, even.
155,672 (one hundred fifty-five thousand six hundred seventy-two) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 11 × 29 × 61. Its proper divisors sum to 179,128, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x26018.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 2,100
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 276,551
- Square (n²)
- 24,233,771,584
- Cube (n³)
- 3,772,519,690,024,448
- Divisor count
- 32
- σ(n) — sum of divisors
- 334,800
- φ(n) — Euler's totient
- 67,200
- Sum of prime factors
- 107
Primality
Prime factorization: 2 3 × 11 × 29 × 61
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√155,672 = [394; (1, 1, 4, 4, 2, 4, 4, 1, 1, 788)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- one hundred fifty-five thousand six hundred seventy-two
- Ordinal
- 155672nd
- Binary
- 100110000000011000
- Octal
- 460030
- Hexadecimal
- 0x26018
- Base64
- AmAY
- One's complement
- 4,294,811,623 (32-bit)
- Scientific notation
- 1.55672 × 10⁵
- As a duration
- 155,672 s = 1 day, 19 hours, 14 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρνεχοβʹ
- Mayan (base 20)
- 𝋳·𝋩·𝋣·𝋬
- Chinese
- 一十五萬五千六百七十二
- Chinese (financial)
- 壹拾伍萬伍仟陸佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 155672, here are decompositions:
- 19 + 155653 = 155672
- 73 + 155599 = 155672
- 79 + 155593 = 155672
- 103 + 155569 = 155672
- 151 + 155521 = 155672
- 163 + 155509 = 155672
- 199 + 155473 = 155672
- 211 + 155461 = 155672
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A6 80 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.96.24.
- Address
- 0.2.96.24
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.96.24
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 155,672 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.