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52006564 = 2215782813
BaseRepresentation
bin1100011001100…
…0111010100100
310121212012121001
43012120322210
5101303202224
65054403044
71201022431
oct306307244
9117765531
1052006564
11273a1335
1215500484
13aa0b81c
146c9ab88
154874544
hex3198ea4

52006564 has 12 divisors (see below), whose sum is σ = 91592284. Its totient is φ = 25837344.

The previous prime is 52006547. The next prime is 52006567. The reversal of 52006564 is 46560025.

It can be written as a sum of positive squares in 2 ways, for example, as 26604964 + 25401600 = 5158^2 + 5040^2 .

It is not an unprimeable number, because it can be changed into a prime (52006567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40779 + ... + 42034.

Almost surely, 252006564 is an apocalyptic number.

It is an amenable number.

52006564 is a deficient number, since it is larger than the sum of its proper divisors (39585720).

52006564 is a wasteful number, since it uses less digits than its factorization.

52006564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82974 (or 82972 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 52006564 is about 7211.5576680770. The cubic root of 52006564 is about 373.2668202794.

Adding to 52006564 its reverse (46560025), we get a palindrome (98566589).

The spelling of 52006564 in words is "fifty-two million, six thousand, five hundred sixty-four".

Divisors: 1 2 4 157 314 628 82813 165626 331252 13001641 26003282 52006564