Base | Representation |
---|---|
bin | 1111100111101… |
… | …11010100100110 |
3 | 100010120100020000 |
4 | 13303313110212 |
5 | 232021131304 |
6 | 21000322130 |
7 | 3150535323 |
oct | 763672446 |
9 | 303510200 |
10 | 131036454 |
11 | 67a6a69a |
12 | 37a73346 |
13 | 211bc483 |
14 | 1358db4a |
15 | b785939 |
hex | 7cf7526 |
131036454 has 20 divisors (see below), whose sum is σ = 293619084. Its totient is φ = 43678764.
The previous prime is 131036447. The next prime is 131036461. The reversal of 131036454 is 454630131.
131036454 is a `hidden beast` number, since 1 + 3 + 10 + 3 + 645 + 4 = 666.
It is an interprime number because it is at equal distance from previous prime (131036447) and next prime (131036461).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
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 9 ways as a sum of consecutive naturals, for example, 404272 + ... + 404595.
Almost surely, 2131036454 is an apocalyptic number.
131036454 is an abundant number, since it is smaller than the sum of its proper divisors (162582630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131036454 is an equidigital number, since it uses as much as digits as its factorization.
131036454 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 808881 (or 808872 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
The square root of 131036454 is about 11447.1155318709. The cubic root of 131036454 is about 507.9224130789.
Adding to 131036454 its reverse (454630131), we get a palindrome (585666585).
The spelling of 131036454 in words is "one hundred thirty-one million, thirty-six thousand, four hundred fifty-four".
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