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14028540 = 22352291021
BaseRepresentation
bin110101100000…
…111011111100
3222101201112120
4311200323330
512042403130
61220402540
7230145351
oct65407374
928351476
1014028540
117a11939
124846450
132ba2416
141c12628
151371910
hexd60efc

14028540 has 48 divisors (see below), whose sum is σ = 39490080. Its totient is φ = 3720960.

The previous prime is 14028533. The next prime is 14028541. The reversal of 14028540 is 4582041.

It is a self number, because there is not a number n which added to its sum of digits gives 14028540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14028541) 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, 13230 + ... + 14250.

It is an arithmetic number, because the mean of its divisors is an integer number (822710).

Almost surely, 214028540 is an apocalyptic number.

14028540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14028540 is an abundant number, since it is smaller than the sum of its proper divisors (25461540).

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

14028540 is a wasteful number, since it uses less digits than its factorization.

14028540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 14028540 is about 3745.4692629896. The cubic root of 14028540 is about 241.1778901597.

It can be divided in two parts, 140 and 28540, that added together give a triangular number (28680 = T239).

The spelling of 14028540 in words is "fourteen million, twenty-eight thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 229 458 687 916 1021 1145 1374 2042 2290 2748 3063 3435 4084 4580 5105 6126 6870 10210 12252 13740 15315 20420 30630 61260 233809 467618 701427 935236 1169045 1402854 2338090 2805708 3507135 4676180 7014270 14028540