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14820988 = 22713192143
BaseRepresentation
bin111000100010…
…011001111100
31000212222120111
4320202121330
512243232423
61245355404
7236655610
oct70423174
930788514
1014820988
118403256
124b68b64
1330bc020
141d7b340
15147b60d
hexe2267c

14820988 has 48 divisors (see below), whose sum is σ = 33617920. Its totient is φ = 5552064.

The previous prime is 14820961. The next prime is 14820989. The reversal of 14820988 is 88902841.

14820988 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 2×148209882 = 439323370592288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14820988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14820989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5845 + ... + 7987.

Almost surely, 214820988 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 14820988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16808960).

14820988 is an abundant number, since it is smaller than the sum of its proper divisors (18796932).

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

14820988 is a wasteful number, since it uses less digits than its factorization.

14820988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186 (or 2184 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 14820988 is about 3849.8036313558. The cubic root of 14820988 is about 245.6362084852.

The spelling of 14820988 in words is "fourteen million, eight hundred twenty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 13 14 19 26 28 38 52 76 91 133 182 247 266 364 494 532 988 1729 2143 3458 4286 6916 8572 15001 27859 30002 40717 55718 60004 81434 111436 162868 195013 285019 390026 529321 570038 780052 1058642 1140076 2117284 3705247 7410494 14820988