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14728868 = 22711172997
BaseRepresentation
bin111000001011…
…111010100100
31000201022012122
4320023322210
512232310433
61243405112
7236123210
oct70137244
930638178
1014728868
118350020
124b23798
13308910b
141d55940
15145e198
hexe0bea4

14728868 has 96 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 5160960.

The previous prime is 14728867. The next prime is 14728873. The reversal of 14728868 is 86882741.

14728868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×147288682 = 433879105122848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (14728867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151796 + ... + 151892.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 214728868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14728868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17781120).

14728868 is an abundant number, since it is smaller than the sum of its proper divisors (20833372).

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

14728868 is a wasteful number, since it uses less digits than its factorization.

14728868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 163 counting only the distinct ones).

The product of its digits is 172032, while the sum is 44.

The square root of 14728868 is about 3837.8207357822. The cubic root of 14728868 is about 245.1262323257.

The spelling of 14728868 in words is "fourteen million, seven hundred twenty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 11 14 17 22 28 29 34 44 58 68 77 97 116 119 154 187 194 203 238 308 319 374 388 406 476 493 638 679 748 812 986 1067 1276 1309 1358 1649 1972 2134 2233 2618 2716 2813 3298 3451 4268 4466 5236 5423 5626 6596 6902 7469 8932 10846 11252 11543 13804 14938 18139 19691 21692 23086 29876 30943 36278 37961 39382 46172 47821 61886 72556 75922 78764 95642 123772 126973 151844 191284 216601 253946 334747 433202 507892 526031 669494 866404 1052062 1338988 2104124 3682217 7364434 14728868