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52520132 = 2272381553
BaseRepresentation
bin1100100001011…
…0010011000100
310122211022002002
43020112103010
5101421121012
65113404432
71205261630
oct310262304
9118738062
1052520132
1127712175
1215709718
13ab5b502
146d91dc0
1549267c2
hex32164c4

52520132 has 24 divisors (see below), whose sum is σ = 109608576. Its totient is φ = 21529728.

The previous prime is 52520129. The next prime is 52520141. The reversal of 52520132 is 23102525.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40133 + ... + 41420.

It is an arithmetic number, because the mean of its divisors is an integer number (4567024).

Almost surely, 252520132 is an apocalyptic number.

It is an amenable number.

52520132 is an abundant number, since it is smaller than the sum of its proper divisors (57088444).

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

52520132 is a wasteful number, since it uses less digits than its factorization.

52520132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81587 (or 81585 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52520132 is about 7247.0774799225. The cubic root of 52520132 is about 374.4914754599.

Adding to 52520132 its reverse (23102525), we get a palindrome (75622657).

The spelling of 52520132 in words is "fifty-two million, five hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 81553 163106 326212 570871 1141742 1875719 2283484 3751438 7502876 13130033 26260066 52520132