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52002815 = 523943517
BaseRepresentation
bin1100011001011…
…1111111111111
310121212000110012
43012113333333
5101303042230
65054333435
71201005464
oct306277777
9117760405
1052002815
1127399537
12154ba27b
13aa09bc7
146c9966b
154873395
hex3197fff

52002815 has 8 divisors (see below), whose sum is σ = 62665920. Its totient is φ = 41427232.

The previous prime is 52002773. The next prime is 52002823. The reversal of 52002815 is 51820025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52002815 is a prime.

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, 20564 + ... + 22953.

It is an arithmetic number, because the mean of its divisors is an integer number (7833240).

Almost surely, 252002815 is an apocalyptic number.

52002815 is a deficient number, since it is larger than the sum of its proper divisors (10663105).

52002815 is a wasteful number, since it uses less digits than its factorization.

52002815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43761.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 52002815 is about 7211.2977334180. The cubic root of 52002815 is about 373.2578508287.

The spelling of 52002815 in words is "fifty-two million, two thousand, eight hundred fifteen".

Divisors: 1 5 239 1195 43517 217585 10400563 52002815