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52004028 = 22343971039
BaseRepresentation
bin1100011001100…
…0010010111100
310121212002010010
43012120102330
5101303112103
65054343220
71201012146
oct306302274
9117762103
1052004028
112739a43a
12154bab10
13aa0a61b
146c99c96
154873903
hex31984bc

52004028 has 48 divisors (see below), whose sum is σ = 125565440. Its totient is φ = 16740864.

The previous prime is 52004023. The next prime is 52004053. The reversal of 52004028 is 82040025.

It is a junction number, because it is equal to n+sod(n) for n = 52003995 and 52004013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52004023) 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, 49533 + ... + 50571.

Almost surely, 252004028 is an apocalyptic number.

It is an amenable number.

52004028 is an abundant number, since it is smaller than the sum of its proper divisors (73561412).

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

52004028 is a wasteful number, since it uses less digits than its factorization.

52004028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 52004028 is about 7211.3818370684. The cubic root of 52004028 is about 373.2607529681.

The spelling of 52004028 in words is "fifty-two million, four thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 43 86 97 129 172 194 258 291 388 516 582 1039 1164 2078 3117 4156 4171 6234 8342 12468 12513 16684 25026 44677 50052 89354 100783 134031 178708 201566 268062 302349 403132 536124 604698 1209396 4333669 8667338 13001007 17334676 26002014 52004028