Base | Representation |
---|---|
bin | 111100100101100111… |
… | …0001100101010110011 |
3 | 110102211122212020212122 |
4 | 1321023032030222303 |
5 | 4112431411010422 |
6 | 135434442544455 |
7 | 12254162344526 |
oct | 1711316145263 |
9 | 412748766778 |
10 | 130111031987 |
11 | 501a8316102 |
12 | 21271b0812b |
13 | c366bab831 |
14 | 642412cbbd |
15 | 35b7996d42 |
hex | 1e4b38cab3 |
130111031987 has 2 divisors, whose sum is σ = 130111031988. Its totient is φ = 130111031986.
The previous prime is 130111031933. The next prime is 130111032053. The reversal of 130111031987 is 789130111031.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 130111031987 - 210 = 130111030963 is a prime.
It is not a weakly prime, because it can be changed into another prime (130111031917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65055515993 + 65055515994.
It is an arithmetic number, because the mean of its divisors is an integer number (65055515994).
Almost surely, 2130111031987 is an apocalyptic number.
130111031987 is a deficient number, since it is larger than the sum of its proper divisors (1).
130111031987 is an equidigital number, since it uses as much as digits as its factorization.
130111031987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4536, while the sum is 35.
The spelling of 130111031987 in words is "one hundred thirty billion, one hundred eleven million, thirty-one thousand, nine hundred eighty-seven".
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