Base | Representation |
---|---|
bin | 11001010111110100… |
… | …11110111101110001 |
3 | 1022011022112200120001 |
4 | 30223322132331301 |
5 | 210344120401421 |
6 | 10131355150001 |
7 | 661362100051 |
oct | 145372367561 |
9 | 38138480501 |
10 | 13621653361 |
11 | 5860082868 |
12 | 2781a45301 |
13 | 139110c424 |
14 | 93314b561 |
15 | 54acea691 |
hex | 32be9ef71 |
13621653361 has 2 divisors, whose sum is σ = 13621653362. Its totient is φ = 13621653360.
The previous prime is 13621653329. The next prime is 13621653371. The reversal of 13621653361 is 16335612631.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12776006961 + 845646400 = 113031^2 + 29080^2 .
It is a cyclic number.
It is not a de Polignac number, because 13621653361 - 25 = 13621653329 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13621653361.
It is not a weakly prime, because it can be changed into another prime (13621653371) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6810826680 + 6810826681.
It is an arithmetic number, because the mean of its divisors is an integer number (6810826681).
Almost surely, 213621653361 is an apocalyptic number.
It is an amenable number.
13621653361 is a deficient number, since it is larger than the sum of its proper divisors (1).
13621653361 is an equidigital number, since it uses as much as digits as its factorization.
13621653361 is an evil number, because the sum of its binary digits is even.
The product of its digits is 58320, while the sum is 37.
The spelling of 13621653361 in words is "thirteen billion, six hundred twenty-one million, six hundred fifty-three thousand, three hundred sixty-one".
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