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14890581894 = 2317145986097
BaseRepresentation
bin11011101111000110…
…00011111110000110
31102102202020221021010
431313203003332012
5220443442110034
610501324503050
71035000600126
oct156743037606
942382227233
1014890581894
116351388631
122a769aaa86
131533c88806
14a138a0c86
155c23ee3e9
hex3778c3f86

14890581894 has 16 divisors (see below), whose sum is σ = 31532997168. Its totient is φ = 4671555072.

The previous prime is 14890581847. The next prime is 14890581907. The reversal of 14890581894 is 49818509841.

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, 72992947 + ... + 72993150.

It is an arithmetic number, because the mean of its divisors is an integer number (1970812323).

Almost surely, 214890581894 is an apocalyptic number.

14890581894 is an abundant number, since it is smaller than the sum of its proper divisors (16642415274).

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

14890581894 is a wasteful number, since it uses less digits than its factorization.

14890581894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145986119.

The product of its (nonzero) digits is 3317760, while the sum is 57.

The spelling of 14890581894 in words is "fourteen billion, eight hundred ninety million, five hundred eighty-one thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 17 34 51 102 145986097 291972194 437958291 875916582 2481763649 4963527298 7445290947 14890581894