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13453913 = 111223083
BaseRepresentation
bin110011010100…
…101001011001
3221022112022002
4303110221121
511421011123
61200210345
7222233144
oct63245131
927275262
1013453913
11765a140
1246099b5
132a309c5
141b0305b
1512ab528
hexcd4a59

13453913 has 4 divisors (see below), whose sum is σ = 14677008. Its totient is φ = 12230820.

The previous prime is 13453901. The next prime is 13453931. The reversal of 13453913 is 31935431.

13453913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-13453913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13453213) 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, 611531 + ... + 611552.

It is an arithmetic number, because the mean of its divisors is an integer number (3669252).

Almost surely, 213453913 is an apocalyptic number.

It is an amenable number.

13453913 is a deficient number, since it is larger than the sum of its proper divisors (1223095).

13453913 is a wasteful number, since it uses less digits than its factorization.

13453913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223094.

The product of its digits is 4860, while the sum is 29.

The square root of 13453913 is about 3667.9576060800. The cubic root of 13453913 is about 237.8388912717.

The spelling of 13453913 in words is "thirteen million, four hundred fifty-three thousand, nine hundred thirteen".

Divisors: 1 11 1223083 13453913