Base | Representation |
---|---|
bin | 1111101101011… |
… | …11100100000001 |
3 | 100011222200102001 |
4 | 13312233210001 |
5 | 232214303410 |
6 | 21024424001 |
7 | 3160130425 |
oct | 766574401 |
9 | 304880361 |
10 | 131791105 |
11 | 68435676 |
12 | 38178001 |
13 | 213c4b04 |
14 | 13708b85 |
15 | b88433a |
hex | 7daf901 |
131791105 has 8 divisors (see below), whose sum is σ = 158346432. Its totient is φ = 105301488.
The previous prime is 131791067. The next prime is 131791147. The reversal of 131791105 is 501197131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131791105 - 217 = 131660033 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11899 + ... + 20128.
It is an arithmetic number, because the mean of its divisors is an integer number (19793304).
Almost surely, 2131791105 is an apocalyptic number.
It is an amenable number.
131791105 is a deficient number, since it is larger than the sum of its proper divisors (26555327).
131791105 is an equidigital number, since it uses as much as digits as its factorization.
131791105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32855.
The product of its (nonzero) digits is 945, while the sum is 28.
The square root of 131791105 is about 11480.0307055338. The cubic root of 131791105 is about 508.8956045397.
The spelling of 131791105 in words is "one hundred thirty-one million, seven hundred ninety-one thousand, one hundred five".
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