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52253642 = 2712729389
BaseRepresentation
bin1100011101010…
…1001111001010
310122022202112002
43013111033022
5101334104032
65103551002
71203101660
oct307251712
9118282462
1052253642
112754aa31
12155bb462
13aa9711c
146d22c30
1548c2862
hex31d53ca

52253642 has 16 divisors (see below), whose sum is σ = 90286080. Its totient is φ = 22217328.

The previous prime is 52253627. The next prime is 52253647. The reversal of 52253642 is 24635225.

It is not an unprimeable number, because it can be changed into a prime (52253647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12917 + ... + 16472.

It is an arithmetic number, because the mean of its divisors is an integer number (5642880).

Almost surely, 252253642 is an apocalyptic number.

52253642 is a deficient number, since it is larger than the sum of its proper divisors (38032438).

52253642 is a wasteful number, since it uses less digits than its factorization.

52253642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29525.

The product of its digits is 14400, while the sum is 29.

The square root of 52253642 is about 7228.6680654184. The cubic root of 52253642 is about 373.8570044434.

Adding to 52253642 its reverse (24635225), we get a palindrome (76888867).

The spelling of 52253642 in words is "fifty-two million, two hundred fifty-three thousand, six hundred forty-two".

Divisors: 1 2 7 14 127 254 889 1778 29389 58778 205723 411446 3732403 7464806 26126821 52253642