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13045913 = 194116747
BaseRepresentation
bin110001110001…
…000010011001
3220112210121222
4301301002121
511314432123
61143341425
7215613506
oct61610231
926483558
1013045913
117400651
124451875
13291a09a
141a384ad
15122a6c8
hexc71099

13045913 has 8 divisors (see below), whose sum is σ = 14068320. Its totient is φ = 12057120.

The previous prime is 13045909. The next prime is 13045927. The reversal of 13045913 is 31954031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13045913 - 22 = 13045909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13045933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7595 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (1758540).

Almost surely, 213045913 is an apocalyptic number.

It is an amenable number.

13045913 is a deficient number, since it is larger than the sum of its proper divisors (1022407).

13045913 is a wasteful number, since it uses less digits than its factorization.

13045913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16807.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 13045913 is about 3611.9126512140. The cubic root of 13045913 is about 235.4099559142.

Adding to 13045913 its reverse (31954031), we get a palindrome (44999944).

The spelling of 13045913 in words is "thirteen million, forty-five thousand, nine hundred thirteen".

Divisors: 1 19 41 779 16747 318193 686627 13045913