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12913299 = 327204973
BaseRepresentation
bin110001010000…
…101010010011
3220022001201100
4301100222103
511301211144
61140435443
7214522050
oct61205223
926261640
1012913299
11731aa53
1243a8b83
1328a1909
141a02027
151201269
hexc50a93

12913299 has 12 divisors (see below), whose sum is σ = 21317296. Its totient is φ = 7378992.

The previous prime is 12913289. The next prime is 12913321. The reversal of 12913299 is 99231921.

It is a happy number.

It is not a de Polignac number, because 12913299 - 24 = 12913283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12913249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102424 + ... + 102549.

Almost surely, 212913299 is an apocalyptic number.

12913299 is a deficient number, since it is larger than the sum of its proper divisors (8403997).

12913299 is a wasteful number, since it uses less digits than its factorization.

12913299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204986 (or 204983 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 12913299 is about 3593.5078961928. The cubic root of 12913299 is about 234.6095765567.

The spelling of 12913299 in words is "twelve million, nine hundred thirteen thousand, two hundred ninety-nine".

Divisors: 1 3 7 9 21 63 204973 614919 1434811 1844757 4304433 12913299