Base | Representation |
---|---|
bin | 10111010111010011… |
… | …110011111011110111 |
3 | 2101202100212022121012 |
4 | 113113103303323313 |
5 | 402334301201013 |
6 | 15305212142435 |
7 | 1545453045506 |
oct | 272723637367 |
9 | 71670768535 |
10 | 25087131383 |
11 | a704039136 |
12 | 4a41767a1b |
13 | 249a5c2852 |
14 | 12ddb8883d |
15 | 9bc6841a8 |
hex | 5d74f3ef7 |
25087131383 has 2 divisors, whose sum is σ = 25087131384. Its totient is φ = 25087131382.
The previous prime is 25087131359. The next prime is 25087131397. The reversal of 25087131383 is 38313178052.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 25087131383 - 212 = 25087127287 is a prime.
It is a super-2 number, since 2×250871313832 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 25087131383.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (25087131313) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12543565691 + 12543565692.
It is an arithmetic number, because the mean of its divisors is an integer number (12543565692).
Almost surely, 225087131383 is an apocalyptic number.
25087131383 is a deficient number, since it is larger than the sum of its proper divisors (1).
25087131383 is an equidigital number, since it uses as much as digits as its factorization.
25087131383 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 120960, while the sum is 41.
The spelling of 25087131383 in words is "twenty-five billion, eighty-seven million, one hundred thirty-one thousand, three hundred eighty-three".
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