Base | Representation |
---|---|
bin | 1111101100100… |
… | …00010100000001 |
3 | 100011202011211022 |
4 | 13312100110001 |
5 | 232201204410 |
6 | 21021555225 |
7 | 3156055310 |
oct | 766202401 |
9 | 304664738 |
10 | 131663105 |
11 | 68358492 |
12 | 38115b15 |
13 | 2137b782 |
14 | 136b4277 |
15 | b85b455 |
hex | 7d90501 |
131663105 has 16 divisors (see below), whose sum is σ = 181785600. Its totient is φ = 89673792.
The previous prime is 131663099. The next prime is 131663111. The reversal of 131663105 is 501366131.
It is an interprime number because it is at equal distance from previous prime (131663099) and next prime (131663111).
It is a cyclic number.
It is not a de Polignac number, because 131663105 - 24 = 131663089 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7409 + ... + 17838.
It is an arithmetic number, because the mean of its divisors is an integer number (11361600).
Almost surely, 2131663105 is an apocalyptic number.
It is an amenable number.
131663105 is a deficient number, since it is larger than the sum of its proper divisors (50122495).
131663105 is a wasteful number, since it uses less digits than its factorization.
131663105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25408.
The product of its (nonzero) digits is 1620, while the sum is 26.
The square root of 131663105 is about 11474.4544532627. The cubic root of 131663105 is about 508.7307989381.
The spelling of 131663105 in words is "one hundred thirty-one million, six hundred sixty-three thousand, one hundred five".
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