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53205252 = 2234433771
BaseRepresentation
bin1100101011110…
…1100100000100
310201010002212220
43022331210010
5102110032002
65140212340
71214144232
oct312754404
9121102786
1053205252
112803a991
121599a0b0
13b03b2c9
1470cd952
154a0e7bc
hex32bd904

53205252 has 12 divisors (see below), whose sum is σ = 124145616. Its totient is φ = 17735080.

The previous prime is 53205239. The next prime is 53205283. The reversal of 53205252 is 25250235.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216874 + ... + 2216897.

It is an arithmetic number, because the mean of its divisors is an integer number (10345468).

Almost surely, 253205252 is an apocalyptic number.

It is an amenable number.

53205252 is an abundant number, since it is smaller than the sum of its proper divisors (70940364).

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

53205252 is a wasteful number, since it uses less digits than its factorization.

53205252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433778 (or 4433776 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 53205252 is about 7294.1930328173. The cubic root of 53205252 is about 376.1128471454.

Adding to 53205252 its reverse (25250235), we get a palindrome (78455487).

The spelling of 53205252 in words is "fifty-three million, two hundred five thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 4433771 8867542 13301313 17735084 26602626 53205252