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13131032212 = 2223592818609
BaseRepresentation
bin11000011101010101…
…11010011010010100
31020220010100112212101
430032222322122110
5203343021012322
610010551331444
7643253634514
oct141652723224
936803315771
1013131032212
115629141941
122665680b84
13131358c25c
148c7d17844
1551cbd6327
hex30eaba694

13131032212 has 48 divisors (see below), whose sum is σ = 24474441600. Its totient is φ = 6150932480.

The previous prime is 13131032191. The next prime is 13131032219. The reversal of 13131032212 is 21223013131.

13131032212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131310322122 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13131032212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131032219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1520964 + ... + 1529572.

It is an arithmetic number, because the mean of its divisors is an integer number (509884200).

Almost surely, 213131032212 is an apocalyptic number.

It is an amenable number.

13131032212 is a deficient number, since it is larger than the sum of its proper divisors (11343409388).

13131032212 is a wasteful number, since it uses less digits than its factorization.

13131032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976 (or 8974 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13131032212 its reverse (21223013131), we get a palindrome (34354045343).

The spelling of 13131032212 in words is "thirteen billion, one hundred thirty-one million, thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 23 46 59 92 118 236 281 562 1124 1357 2714 5428 6463 8609 12926 16579 17218 25852 33158 34436 66316 198007 381317 396014 507931 762634 792028 1015862 1525268 2031724 2419129 4838258 9676516 11682413 23364826 46729652 55639967 111279934 142728611 222559868 285457222 570914444 3282758053 6565516106 13131032212