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13131202636 = 227146236629
BaseRepresentation
bin11000011101010111…
…00100000001001100
31020220010200012122101
430032223210001030
5203343041441021
610010555124444
7643255244416
oct141653440114
936803605571
1013131202636
115629248992
122665743724
13131361b9b6
148c7d5d9b6
1551cc1ba91
hex30eae404c

13131202636 has 12 divisors (see below), whose sum is σ = 23303261520. Its totient is φ = 6473127920.

The previous prime is 13131202627. The next prime is 13131202681. The reversal of 13131202636 is 63620213131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23118031 + ... + 23118598.

It is an arithmetic number, because the mean of its divisors is an integer number (1941938460).

Almost surely, 213131202636 is an apocalyptic number.

It is an amenable number.

13131202636 is a deficient number, since it is larger than the sum of its proper divisors (10172058884).

13131202636 is a wasteful number, since it uses less digits than its factorization.

13131202636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46236704 (or 46236702 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 13131202636 its reverse (63620213131), we get a palindrome (76751415767).

The spelling of 13131202636 in words is "thirteen billion, one hundred thirty-one million, two hundred two thousand, six hundred thirty-six".

Divisors: 1 2 4 71 142 284 46236629 92473258 184946516 3282800659 6565601318 13131202636