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52307292 = 22331140611
BaseRepresentation
bin1100011110001…
…0010101011100
310122102111010010
43013202111130
5101342313132
65105043220
71203414252
oct307422534
9118374103
1052307292
1127587274
1215626510
13aab567b
146d385d2
1548d36cc
hex31e255c

52307292 has 24 divisors (see below), whose sum is σ = 125988352. Its totient is φ = 16873200.

The previous prime is 52307291. The next prime is 52307303. The reversal of 52307292 is 29270325.

It is a happy number.

52307292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52307291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69934 + ... + 70677.

Almost surely, 252307292 is an apocalyptic number.

It is an amenable number.

52307292 is an abundant number, since it is smaller than the sum of its proper divisors (73681060).

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

52307292 is a wasteful number, since it uses less digits than its factorization.

52307292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140649 (or 140647 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 52307292 is about 7232.3780321551. The cubic root of 52307292 is about 373.9849098356.

The spelling of 52307292 in words is "fifty-two million, three hundred seven thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 140611 281222 421833 562444 843666 1687332 4358941 8717882 13076823 17435764 26153646 52307292