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13488613 = 19709927
BaseRepresentation
bin110011011101…
…000111100101
3221101021220021
4303131013211
511423113423
61201035141
7222436255
oct63350745
927337807
1013488613
117683216
124625ab1
132a43738
141b11965
1512b695d
hexcdd1e5

13488613 has 4 divisors (see below), whose sum is σ = 14198560. Its totient is φ = 12778668.

The previous prime is 13488589. The next prime is 13488623. The reversal of 13488613 is 31688431.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31688431 = 117127061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13488613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13488623) 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, 354945 + ... + 354982.

It is an arithmetic number, because the mean of its divisors is an integer number (3549640).

Almost surely, 213488613 is an apocalyptic number.

It is an amenable number.

13488613 is a deficient number, since it is larger than the sum of its proper divisors (709947).

13488613 is an equidigital number, since it uses as much as digits as its factorization.

13488613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709946.

The product of its digits is 13824, while the sum is 34.

The square root of 13488613 is about 3672.6847128497. The cubic root of 13488613 is about 238.0431917940.

The spelling of 13488613 in words is "thirteen million, four hundred eighty-eight thousand, six hundred thirteen".

Divisors: 1 19 709927 13488613