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3120132013 = 30231032131
BaseRepresentation
bin1011100111111001…
…0110111110101101
322001110002010110221
42321332112332231
522342223211023
61233335131341
7140214453535
oct27176267655
98043063427
103120132013
1113612623a9
12730b13b51
133a955657b
142185584c5
15133dc385d
hexb9f96fad

3120132013 has 4 divisors (see below), whose sum is σ = 3121167168. Its totient is φ = 3119096860.

The previous prime is 3120131983. The next prime is 3120132017. The reversal of 3120132013 is 3102310213.

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: 3102310213 = 31100074523.

It is a cyclic number.

It is not a de Polignac number, because 3120132013 - 225 = 3086577581 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 (3120132017) 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, 513043 + ... + 519088.

It is an arithmetic number, because the mean of its divisors is an integer number (780291792).

Almost surely, 23120132013 is an apocalyptic number.

It is an amenable number.

3120132013 is a deficient number, since it is larger than the sum of its proper divisors (1035155).

3120132013 is a wasteful number, since it uses less digits than its factorization.

3120132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035154.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3120132013 is about 55858.1418684868. The cubic root of 3120132013 is about 1461.2493236230.

Adding to 3120132013 its reverse (3102310213), we get a palindrome (6222442226).

The spelling of 3120132013 in words is "three billion, one hundred twenty million, one hundred thirty-two thousand, thirteen".

Divisors: 1 3023 1032131 3120132013