Base | Representation |
---|---|
bin | 111101001011111011… |
… | …1110110110011111101 |
3 | 110120011021200021001120 |
4 | 1322113313312303331 |
5 | 4123100114132200 |
6 | 140210222101153 |
7 | 12331066151442 |
oct | 1722767666375 |
9 | 416137607046 |
10 | 131397020925 |
11 | 507a8213685 |
12 | 2157071a7b9 |
13 | c51044c331 |
14 | 6506c439c9 |
15 | 364081a9a0 |
hex | 1e97df6cfd |
131397020925 has 24 divisors (see below), whose sum is σ = 230022081216. Its totient is φ = 65956151040.
The previous prime is 131397020899. The next prime is 131397020927. The reversal of 131397020925 is 529020793131.
It is not a de Polignac number, because 131397020925 - 215 = 131396988157 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131397020927) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51526969 + ... + 51529518.
It is an arithmetic number, because the mean of its divisors is an integer number (9584253384).
Almost surely, 2131397020925 is an apocalyptic number.
131397020925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
131397020925 is a deficient number, since it is larger than the sum of its proper divisors (98625060291).
131397020925 is a wasteful number, since it uses less digits than its factorization.
131397020925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103056517 (or 103056512 counting only the distinct ones).
The product of its (nonzero) digits is 102060, while the sum is 42.
The spelling of 131397020925 in words is "one hundred thirty-one billion, three hundred ninety-seven million, twenty thousand, nine hundred twenty-five".
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