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12913417 = 111173947
BaseRepresentation
bin110001010000…
…101100001001
3220022001212201
4301100230021
511301212132
61140440201
7214522306
oct61205411
926261781
1012913417
117320050
1243a9061
1328a199a
141a020ad
1512012e7
hexc50b09

12913417 has 4 divisors (see below), whose sum is σ = 14087376. Its totient is φ = 11739460.

The previous prime is 12913399. The next prime is 12913423. The reversal of 12913417 is 71431921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12913417 - 27 = 12913289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12913427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586963 + ... + 586984.

It is an arithmetic number, because the mean of its divisors is an integer number (3521844).

Almost surely, 212913417 is an apocalyptic number.

It is an amenable number.

12913417 is a deficient number, since it is larger than the sum of its proper divisors (1173959).

12913417 is a wasteful number, since it uses less digits than its factorization.

12913417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173958.

The product of its digits is 1512, while the sum is 28.

The square root of 12913417 is about 3593.5243146527. The cubic root of 12913417 is about 234.6102911649.

The spelling of 12913417 in words is "twelve million, nine hundred thirteen thousand, four hundred seventeen".

Divisors: 1 11 1173947 12913417