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52305020 = 2256773863
BaseRepresentation
bin1100011110000…
…1110001111100
310122102100222222
43013201301330
5101342230040
65105024512
71203404525
oct307416174
9118370888
1052305020
1127585599
1215625138
13aab4621
146d3784c
1548d2bb5
hex31e1c7c

52305020 has 24 divisors (see below), whose sum is σ = 110031264. Its totient is φ = 20885696.

The previous prime is 52305007. The next prime is 52305037. The reversal of 52305020 is 2050325.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 52305020.

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, 11609 + ... + 15471.

It is an arithmetic number, because the mean of its divisors is an integer number (4584636).

Almost surely, 252305020 is an apocalyptic number.

It is an amenable number.

52305020 is an abundant number, since it is smaller than the sum of its proper divisors (57726244).

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

52305020 is a wasteful number, since it uses less digits than its factorization.

52305020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549 (or 4547 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 52305020 is about 7232.2209590139. The cubic root of 52305020 is about 373.9794950009.

Adding to 52305020 its reverse (2050325), we get a palindrome (54355345).

The spelling of 52305020 in words is "fifty-two million, three hundred five thousand, twenty".

Divisors: 1 2 4 5 10 20 677 1354 2708 3385 3863 6770 7726 13540 15452 19315 38630 77260 2615251 5230502 10461004 13076255 26152510 52305020