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13051868 = 2231671571
BaseRepresentation
bin110001110010…
…011111011100
3220120002210112
4301302133130
511320124433
61143425152
7215640044
oct61623734
926502715
1013051868
117405075
1244551b8
13291c9cb
141a3a724
15122c348
hexc727dc

13051868 has 24 divisors (see below), whose sum is σ = 23944704. Its totient is φ = 6217200.

The previous prime is 13051867. The next prime is 13051873. The reversal of 13051868 is 86815031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13051867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7523 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (997696).

Almost surely, 213051868 is an apocalyptic number.

It is an amenable number.

13051868 is a deficient number, since it is larger than the sum of its proper divisors (10892836).

13051868 is a wasteful number, since it uses less digits than its factorization.

13051868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 13051868 is about 3612.7369126467. The cubic root of 13051868 is about 235.4457692513.

Adding to 13051868 its reverse (86815031), we get a palindrome (99866899).

The spelling of 13051868 in words is "thirteen million, fifty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 4 31 62 67 124 134 268 1571 2077 3142 4154 6284 8308 48701 97402 105257 194804 210514 421028 3262967 6525934 13051868