Base | Representation |
---|---|
bin | 11000110100011110… |
… | …10101110101001111 |
3 | 1021101122120210110121 |
4 | 30122033111311033 |
5 | 204242213143322 |
6 | 10042123445411 |
7 | 651131513452 |
oct | 143217256517 |
9 | 37348523417 |
10 | 13325131087 |
11 | 5718764234 |
12 | 26ba686867 |
13 | 134485b568 |
14 | 905a01499 |
15 | 52ec76ec7 |
hex | 31a3d5d4f |
13325131087 has 2 divisors, whose sum is σ = 13325131088. Its totient is φ = 13325131086.
The previous prime is 13325131021. The next prime is 13325131111. The reversal of 13325131087 is 78013152331.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13325131087 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13325131387) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6662565543 + 6662565544.
It is an arithmetic number, because the mean of its divisors is an integer number (6662565544).
Almost surely, 213325131087 is an apocalyptic number.
13325131087 is a deficient number, since it is larger than the sum of its proper divisors (1).
13325131087 is an equidigital number, since it uses as much as digits as its factorization.
13325131087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 15120, while the sum is 34.
The spelling of 13325131087 in words is "thirteen billion, three hundred twenty-five million, one hundred thirty-one thousand, eighty-seven".
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