Base | Representation |
---|---|
bin | 110010001011… |
… | …001100111001 |
3 | 220202020122011 |
4 | 302023030321 |
5 | 11331344311 |
6 | 1145525521 |
7 | 216541114 |
oct | 62131471 |
9 | 26666564 |
10 | 13153081 |
11 | 7474117 |
12 | 44a38a1 |
13 | 2956ab6 |
14 | 1a6557b |
15 | 124c321 |
hex | c8b339 |
13153081 has 2 divisors, whose sum is σ = 13153082. Its totient is φ = 13153080.
The previous prime is 13153051. The next prime is 13153097. The reversal of 13153081 is 18035131.
13153081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12845056 + 308025 = 3584^2 + 555^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13153081 is a prime.
It is a super-2 number, since 2×131530812 = 346007079585122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13153001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6576540 + 6576541.
It is an arithmetic number, because the mean of its divisors is an integer number (6576541).
Almost surely, 213153081 is an apocalyptic number.
It is an amenable number.
13153081 is a deficient number, since it is larger than the sum of its proper divisors (1).
13153081 is an equidigital number, since it uses as much as digits as its factorization.
13153081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 13153081 is about 3626.7176620189. The cubic root of 13153081 is about 236.0528046641.
The spelling of 13153081 in words is "thirteen million, one hundred fifty-three thousand, eighty-one".
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