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14288728894 = 2113779222199
BaseRepresentation
bin11010100111010110…
…01011001100111110
31100212210202122011021
431103223023030332
5213230403311034
610321505014354
71014042122506
oct152353131476
940783678137
1014288728894
116072684560
1229293243ba
13146939168b
14997994a06
155896676b4
hex353acb33e

14288728894 has 32 divisors (see below), whose sum is σ = 24317568000. Its totient is φ = 6239319840.

The previous prime is 14288728873. The next prime is 14288728901. The reversal of 14288728894 is 49882788241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46794 + ... + 175405.

It is an arithmetic number, because the mean of its divisors is an integer number (759924000).

Almost surely, 214288728894 is an apocalyptic number.

14288728894 is a deficient number, since it is larger than the sum of its proper divisors (10028839106).

14288728894 is a wasteful number, since it uses less digits than its factorization.

14288728894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222328.

The product of its digits is 16515072, while the sum is 61.

The spelling of 14288728894 in words is "fourteen billion, two hundred eighty-eight million, seven hundred twenty-eight thousand, eight hundred ninety-four".

Divisors: 1 2 11 22 37 74 79 158 407 814 869 1738 2923 5846 32153 64306 222199 444398 2444189 4888378 8221363 16442726 17553721 35107442 90434993 180869986 193090931 386181862 649487677 1298975354 7144364447 14288728894