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8913913 = 82310831
BaseRepresentation
bin100010000000…
…001111111001
3121202212120221
4202000033321
54240221123
6515020041
7135524041
oct42001771
917685527
108913913
115039178
122b9a621
131b01408
141280721
15bb125d
hex8803f9

8913913 has 4 divisors (see below), whose sum is σ = 8925568. Its totient is φ = 8902260.

The previous prime is 8913901. The next prime is 8913917. The reversal of 8913913 is 3193198.

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-8913913 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8913917) 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, 4593 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (2231392).

Almost surely, 28913913 is an apocalyptic number.

It is an amenable number.

8913913 is a deficient number, since it is larger than the sum of its proper divisors (11655).

8913913 is a wasteful number, since it uses less digits than its factorization.

8913913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11654.

The product of its digits is 5832, while the sum is 34.

The square root of 8913913 is about 2985.6176915339. The cubic root of 8913913 is about 207.3430409280.

The spelling of 8913913 in words is "eight million, nine hundred thirteen thousand, nine hundred thirteen".

Divisors: 1 823 10831 8913913