Base | Representation |
---|---|
bin | 1111101100111… |
… | …00101001010111 |
3 | 100011211202010100 |
4 | 13312130221113 |
5 | 232204313443 |
6 | 21023025143 |
7 | 3156355506 |
oct | 766345127 |
9 | 304752110 |
10 | 131713623 |
11 | 68392438 |
12 | 3813b1b3 |
13 | 21398772 |
14 | 136c883d |
15 | b86b3d3 |
hex | 7d9ca57 |
131713623 has 6 divisors (see below), whose sum is σ = 190253024. Its totient is φ = 87809076.
The previous prime is 131713559. The next prime is 131713657. The reversal of 131713623 is 326317131.
131713623 is a `hidden beast` number, since 1 + 31 + 7 + 1 + 3 + 623 = 666.
It is not a de Polignac number, because 131713623 - 26 = 131713559 is a prime.
It is a super-2 number, since 2×1317136232 = 34696956967572258, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131718623) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7317415 + ... + 7317432.
Almost surely, 2131713623 is an apocalyptic number.
131713623 is a deficient number, since it is larger than the sum of its proper divisors (58539401).
131713623 is a wasteful number, since it uses less digits than its factorization.
131713623 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14634853 (or 14634850 counting only the distinct ones).
The product of its digits is 2268, while the sum is 27.
The square root of 131713623 is about 11476.6555668452. The cubic root of 131713623 is about 508.7958558276.
The spelling of 131713623 in words is "one hundred thirty-one million, seven hundred thirteen thousand, six hundred twenty-three".
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