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12902913 = 3231103449
BaseRepresentation
bin110001001110…
…001000000001
3220021112110200
4301032020001
511300343123
61140315413
7214446552
oct61161001
926245420
1012902913
117313171
1243a2b69
132899c7a
1419dc329
1511ed143
hexc4e201

12902913 has 24 divisors (see below), whose sum is σ = 19468800. Its totient is φ = 8225280.

The previous prime is 12902891. The next prime is 12902951. The reversal of 12902913 is 31920921.

12902913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12902913 - 26 = 12902849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12902993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28513 + ... + 28961.

It is an arithmetic number, because the mean of its divisors is an integer number (811200).

Almost surely, 212902913 is an apocalyptic number.

It is an amenable number.

12902913 is a deficient number, since it is larger than the sum of its proper divisors (6565887).

12902913 is a wasteful number, since it uses less digits than its factorization.

12902913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 12902913 is about 3592.0624994563. The cubic root of 12902913 is about 234.5466618667.

The spelling of 12902913 in words is "twelve million, nine hundred two thousand, nine hundred thirteen".

Divisors: 1 3 9 31 93 103 279 309 449 927 1347 3193 4041 9579 13919 28737 41757 46247 125271 138741 416223 1433657 4300971 12902913