Base | Representation |
---|---|
bin | 11000101010111110… |
… | …01111010010100001 |
3 | 1021012002120200010211 |
4 | 30111133033102201 |
5 | 204111311200023 |
6 | 10030155054121 |
7 | 646143102004 |
oct | 142537172241 |
9 | 37162520124 |
10 | 13245412513 |
11 | 5687765513 |
12 | 2697a41341 |
13 | 13311992c8 |
14 | 8d91ad53b |
15 | 527c7ba0d |
hex | 3157cf4a1 |
13245412513 has 2 divisors, whose sum is σ = 13245412514. Its totient is φ = 13245412512.
The previous prime is 13245412483. The next prime is 13245412519. The reversal of 13245412513 is 31521454231.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10397269089 + 2848143424 = 101967^2 + 53368^2 .
It is a cyclic number.
It is not a de Polignac number, because 13245412513 - 29 = 13245412001 is a prime.
It is not a weakly prime, because it can be changed into another prime (13245412519) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622706256 + 6622706257.
It is an arithmetic number, because the mean of its divisors is an integer number (6622706257).
Almost surely, 213245412513 is an apocalyptic number.
It is an amenable number.
13245412513 is a deficient number, since it is larger than the sum of its proper divisors (1).
13245412513 is an equidigital number, since it uses as much as digits as its factorization.
13245412513 is an evil number, because the sum of its binary digits is even.
The product of its digits is 14400, while the sum is 31.
Adding to 13245412513 its reverse (31521454231), we get a palindrome (44766866744).
The spelling of 13245412513 in words is "thirteen billion, two hundred forty-five million, four hundred twelve thousand, five hundred thirteen".
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