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16325428 = 227373163
BaseRepresentation
bin111110010001…
…101100110100
31010201102021111
4332101230310
513134403203
61341524404
7255523000
oct76215464
933642244
1016325428
119240599
125573704
1334c7a22
14224d700
15167726d
hexf91b34

16325428 has 48 divisors (see below), whose sum is σ = 33980800. Its totient is φ = 6858432.

The previous prime is 16325417. The next prime is 16325447. The reversal of 16325428 is 82452361.

It is a self number, because there is not a number n which added to its sum of digits gives 16325428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100075 + ... + 100237.

Almost surely, 216325428 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 16325428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16990400).

16325428 is an abundant number, since it is smaller than the sum of its proper divisors (17655372).

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

16325428 is a wasteful number, since it uses less digits than its factorization.

16325428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 245 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 16325428 is about 4040.4737346009. The cubic root of 16325428 is about 253.6811465982.

Adding to 16325428 its reverse (82452361), we get a palindrome (98777789).

The spelling of 16325428 in words is "sixteen million, three hundred twenty-five thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 49 73 98 146 163 196 292 326 343 511 652 686 1022 1141 1372 2044 2282 3577 4564 7154 7987 11899 14308 15974 23798 25039 31948 47596 50078 55909 83293 100156 111818 166586 223636 333172 583051 1166102 2332204 4081357 8162714 16325428