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52387560 = 23345192337
BaseRepresentation
bin1100011111010…
…1111011101000
310122120120020000
43013311323220
5101402400220
65110503000
71204200261
oct307657350
9118516200
1052387560
1127631605
1215664a60
13ab13074
146d59968
1548ec390
hex31f5ee8

52387560 has 320 divisors, whose sum is σ = 198633600. Its totient is φ = 12317184.

The previous prime is 52387549. The next prime is 52387633. The reversal of 52387560 is 6578325.

52387560 is a `hidden beast` number, since 523 + 8 + 75 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1415862 + ... + 1415898.

It is an arithmetic number, because the mean of its divisors is an integer number (620730).

Almost surely, 252387560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52387560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99316800).

52387560 is an abundant number, since it is smaller than the sum of its proper divisors (146246040).

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

52387560 is a wasteful number, since it uses less digits than its factorization.

52387560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 52387560 is about 7237.9251170484. The cubic root of 52387560 is about 374.1761112117.

The spelling of 52387560 in words is "fifty-two million, three hundred eighty-seven thousand, five hundred sixty".