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20013395862 = 2323913956343
BaseRepresentation
bin10010101000111001…
…000010111110010110
31220122202201211220210
4102220321002332112
5311441412131422
613105524310250
71305644025615
oct225071027626
956582654823
1020013395862
118540049589
123a66542386
131b6c3b8095
14d7bdb187c
157c201510c
hex4a8e42f96

20013395862 has 16 divisors (see below), whose sum is σ = 40194270720. Its totient is φ = 6643218792.

The previous prime is 20013395861. The next prime is 20013395869. The reversal of 20013395862 is 26859331002.

It is a self number, because there is not a number n which added to its sum of digits gives 20013395862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013395861) 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 7 ways as a sum of consecutive naturals, for example, 6976738 + ... + 6979605.

It is an arithmetic number, because the mean of its divisors is an integer number (2512141920).

Almost surely, 220013395862 is an apocalyptic number.

20013395862 is an abundant number, since it is smaller than the sum of its proper divisors (20180874858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013395862 is a wasteful number, since it uses less digits than its factorization.

20013395862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956587.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 20013395862 in words is "twenty billion, thirteen million, three hundred ninety-five thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 239 478 717 1434 13956343 27912686 41869029 83738058 3335565977 6671131954 10006697931 20013395862