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13213023132 = 22313182910139
BaseRepresentation
bin11000100111000111…
…01011101110011100
31021002211122010021010
430103203223232130
5204030013220012
610023040535220
7645300562221
oct142343535634
937084563233
1013213023132
115670452931
122689021510
1313275688aa
148d4b7b948
15524ecec3c
hex3138ebb9c

13213023132 has 48 divisors (see below), whose sum is σ = 31106275200. Its totient is φ = 4365017280.

The previous prime is 13213023127. The next prime is 13213023163. The reversal of 13213023132 is 23132031231.

It is a junction number, because it is equal to n+sod(n) for n = 13213023099 and 13213023108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298119 + ... + 1308257.

It is an arithmetic number, because the mean of its divisors is an integer number (648047400).

Almost surely, 213213023132 is an apocalyptic number.

13213023132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13213023132 is an abundant number, since it is smaller than the sum of its proper divisors (17893252068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13213023132 is a wasteful number, since it uses less digits than its factorization.

13213023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106 (or 11104 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13213023132 its reverse (23132031231), we get a palindrome (36345054363).

The spelling of 13213023132 in words is "thirteen billion, two hundred thirteen million, twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 131 262 393 524 786 829 1572 1658 2487 3316 4974 9948 10139 20278 30417 40556 60834 108599 121668 217198 325797 434396 651594 1303188 1328209 2656418 3984627 5312836 7969254 8405231 15938508 16810462 25215693 33620924 50431386 100862772 1101085261 2202170522 3303255783 4404341044 6606511566 13213023132