Base | Representation |
---|---|
bin | 111101001101001101… |
… | …0110000000001011101 |
3 | 110120021021000201201200 |
4 | 1322122122300001131 |
5 | 4123142032110324 |
6 | 140214345230113 |
7 | 12332125131210 |
oct | 1723232600135 |
9 | 416237021650 |
10 | 131439722589 |
11 | 5081a32a00a |
12 | 21582a92339 |
13 | c5192507a6 |
14 | 650c79b777 |
15 | 3644452ec9 |
hex | 1e9a6b005d |
131439722589 has 24 divisors (see below), whose sum is σ = 218416828032. Its totient is φ = 74611000800.
The previous prime is 131439722551. The next prime is 131439722593. The reversal of 131439722589 is 985227934131.
131439722589 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 39 + 7 + 22 + 589 = 666.
It is not a de Polignac number, because 131439722589 - 231 = 129292238941 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131439722509) 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, 6898914 + ... + 6917939.
It is an arithmetic number, because the mean of its divisors is an integer number (9100701168).
Almost surely, 2131439722589 is an apocalyptic number.
It is an amenable number.
131439722589 is a deficient number, since it is larger than the sum of its proper divisors (86977105443).
131439722589 is a wasteful number, since it uses less digits than its factorization.
131439722589 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13817017 (or 13817014 counting only the distinct ones).
The product of its digits is 3265920, while the sum is 54.
The spelling of 131439722589 in words is "one hundred thirty-one billion, four hundred thirty-nine million, seven hundred twenty-two thousand, five hundred eighty-nine".
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