Search a number
-
+
28000552524 = 2237595649829
BaseRepresentation
bin11010000100111101…
…101000011001001100
32200021101222110001220
4122010331220121030
5424321120140044
620510245003340
72010610524630
oct320475503114
980241873056
1028000552524
11109696445aa
1255153b3550
132843082399
1414d8a94dc0
15add325019
hex684f6864c

28000552524 has 48 divisors (see below), whose sum is σ = 75933715200. Its totient is φ = 7864560576.

The previous prime is 28000552469. The next prime is 28000552537. The reversal of 28000552524 is 42525500082.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2819959 + ... + 2829870.

It is an arithmetic number, because the mean of its divisors is an integer number (1581952400).

Almost surely, 228000552524 is an apocalyptic number.

It is an amenable number.

28000552524 is an abundant number, since it is smaller than the sum of its proper divisors (47933162676).

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

28000552524 is a wasteful number, since it uses less digits than its factorization.

28000552524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649902 (or 5649900 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 28000552524 in words is "twenty-eight billion, five hundred fifty-two thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 59 84 118 177 236 354 413 708 826 1239 1652 2478 4956 5649829 11299658 16949487 22599316 33898974 39548803 67797948 79097606 118646409 158195212 237292818 333339911 474585636 666679822 1000019733 1333359644 2000039466 2333379377 4000078932 4666758754 7000138131 9333517508 14000276262 28000552524