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10836910981 = 13833608537
BaseRepresentation
bin10100001011110111…
…00010001110000101
31000222020120010011101
422011323202032011
5134143222122411
64551200340101
7532356136441
oct120573421605
930866503141
1010836910981
114661176686
122125314631
1310391c4b80
1474b379821
154365c68c1
hex285ee2385

10836910981 has 4 divisors (see below), whose sum is σ = 11670519532. Its totient is φ = 10003302432.

The previous prime is 10836910883. The next prime is 10836911009. The reversal of 10836910981 is 18901963801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6911261956 + 3925649025 = 83134^2 + 62655^2 .

It is a cyclic number.

It is not a de Polignac number, because 10836910981 - 217 = 10836779909 is a prime.

It is a super-2 number, since 2×108369109812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10839910981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416804256 + ... + 416804281.

It is an arithmetic number, because the mean of its divisors is an integer number (2917629883).

Almost surely, 210836910981 is an apocalyptic number.

It is an amenable number.

10836910981 is a deficient number, since it is larger than the sum of its proper divisors (833608551).

10836910981 is an equidigital number, since it uses as much as digits as its factorization.

10836910981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833608550.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 10836910981 in words is "ten billion, eight hundred thirty-six million, nine hundred ten thousand, nine hundred eighty-one".

Divisors: 1 13 833608537 10836910981