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10518938131 = 131077562141
BaseRepresentation
bin10011100101111101…
…00100001000010011
31000011002020102102011
421302332210020103
5133020322010011
64455441203351
7521445333052
oct116276441023
930132212364
1010518938131
1145087369a9
122056930557
13cb8373560
1471b048399
15418717621
hex272fa4213

10518938131 has 8 divisors (see below), whose sum is σ = 11433958704. Its totient is φ = 9619042080.

The previous prime is 10518938107. The next prime is 10518938141. The reversal of 10518938131 is 13183981501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10518938131 - 29 = 10518937619 is a prime.

It is a super-2 number, since 2×105189381312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10518938141) 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, 3779680 + ... + 3782461.

It is an arithmetic number, because the mean of its divisors is an integer number (1429244838).

Almost surely, 210518938131 is an apocalyptic number.

10518938131 is a deficient number, since it is larger than the sum of its proper divisors (915020573).

10518938131 is a wasteful number, since it uses less digits than its factorization.

10518938131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562261.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 10518938131 in words is "ten billion, five hundred eighteen million, nine hundred thirty-eight thousand, one hundred thirty-one".

Divisors: 1 13 107 1391 7562141 98307833 809149087 10518938131