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14394428918 = 2193491085389
BaseRepresentation
bin11010110011111100…
…11000110111110110
31101011011122202022222
431121332120313312
5213434433211133
610340202322342
71016464425032
oct153176306766
941134582288
1014394428918
116117309551
1229587b93b2
13148524c77c
149a7a2b1c2
15593a95e98
hex359f98df6

14394428918 has 16 divisors (see below), whose sum is σ = 22793190000. Its totient is φ = 6798870432.

The previous prime is 14394428891. The next prime is 14394428933. The reversal of 14394428918 is 81982449341.

It is a self number, because there is not a number n which added to its sum of digits gives 14394428918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529433 + ... + 555956.

It is an arithmetic number, because the mean of its divisors is an integer number (1424574375).

Almost surely, 214394428918 is an apocalyptic number.

14394428918 is a deficient number, since it is larger than the sum of its proper divisors (8398761082).

14394428918 is a wasteful number, since it uses less digits than its factorization.

14394428918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085759.

The product of its digits is 1990656, while the sum is 53.

The spelling of 14394428918 in words is "fourteen billion, three hundred ninety-four million, four hundred twenty-eight thousand, nine hundred eighteen".

Divisors: 1 2 19 38 349 698 6631 13262 1085389 2170778 20622391 41244782 378800761 757601522 7197214459 14394428918