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52472252 = 2272964621
BaseRepresentation
bin1100100000101…
…0100110111100
310122201212101202
43020022212330
5101413103002
65112355032
71205002220
oct310124674
9118655352
1052472252
112768a1a8
12156a5a78
13ab42791
146d7c780
154917502
hex320a9bc

52472252 has 24 divisors (see below), whose sum is σ = 108564960. Its totient is φ = 21712320.

The previous prime is 52472249. The next prime is 52472263. The reversal of 52472252 is 25227425.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

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, 31499 + ... + 33122.

It is an arithmetic number, because the mean of its divisors is an integer number (4523540).

Almost surely, 252472252 is an apocalyptic number.

It is an amenable number.

52472252 is an abundant number, since it is smaller than the sum of its proper divisors (56092708).

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

52472252 is a wasteful number, since it uses less digits than its factorization.

52472252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64661 (or 64659 counting only the distinct ones).

The product of its digits is 11200, while the sum is 29.

The square root of 52472252 is about 7243.7733261057. The cubic root of 52472252 is about 374.3776390905.

Adding to 52472252 its reverse (25227425), we get a palindrome (77699677).

The spelling of 52472252 in words is "fifty-two million, four hundred seventy-two thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 64621 129242 258484 452347 904694 1809388 1874009 3748018 7496036 13118063 26236126 52472252