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3130520013 = 323743218627
BaseRepresentation
bin1011101010010111…
…1111000111001101
322002011121220010200
42322211333013031
522402403120023
61234345524113
7140401660335
oct27245770715
98064556120
103130520013
111367108025
127344a3639
133ab75290a
14219aa00c5
15134c76743
hexba97f1cd

3130520013 has 24 divisors (see below), whose sum is σ = 4752098208. Its totient is φ = 1983375072.

The previous prime is 3130519991. The next prime is 3130520017. The reversal of 3130520013 is 3100250313.

3130520013 is a `hidden beast` number, since 3 + 130 + 520 + 0 + 13 = 666.

It is not a de Polignac number, because 3130520013 - 25 = 3130519981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130520017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94995 + ... + 123632.

It is an arithmetic number, because the mean of its divisors is an integer number (198004092).

Almost surely, 23130520013 is an apocalyptic number.

It is an amenable number.

3130520013 is a deficient number, since it is larger than the sum of its proper divisors (1621578195).

3130520013 is a wasteful number, since it uses less digits than its factorization.

3130520013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218713 (or 218710 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 3130520013 is about 55951.0501510025. The cubic root of 3130520013 is about 1462.8691955931.

Adding to 3130520013 its reverse (3100250313), we get a palindrome (6230770326).

The spelling of 3130520013 in words is "three billion, one hundred thirty million, five hundred twenty thousand, thirteen".

Divisors: 1 3 9 37 43 111 129 333 387 1591 4773 14319 218627 655881 1967643 8089199 9400961 24267597 28202883 72802791 84608649 347835557 1043506671 3130520013