Search a number
-
+
28201752 = 2332391691
BaseRepresentation
bin110101110010…
…1001100011000
31222001210112100
41223211030120
524204424002
62444243400
7461465565
oct153451430
958053470
1028201752
1114a12437
129540560
135ac5637
143a6186c
15272111c
hex1ae5318

28201752 has 24 divisors (see below), whose sum is σ = 76379940. Its totient is φ = 9400560.

The previous prime is 28201721. The next prime is 28201781. The reversal of 28201752 is 25710282.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 195774 + ... + 195917.

Almost surely, 228201752 is an apocalyptic number.

It is an amenable number.

28201752 is an abundant number, since it is smaller than the sum of its proper divisors (48178188).

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

28201752 is a wasteful number, since it uses less digits than its factorization.

28201752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391703 (or 391696 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 28201752 is about 5310.5321767220. The cubic root of 28201752 is about 304.3864832837.

The spelling of 28201752 in words is "twenty-eight million, two hundred one thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 391691 783382 1175073 1566764 2350146 3133528 3525219 4700292 7050438 9400584 14100876 28201752