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52115752115 = 579749930763
BaseRepresentation
bin110000100010010101…
…110100010010110011
311222112000222111220022
4300202111310102303
51323213113031430
635535221234055
73523322404160
oct604225642263
9158460874808
1052115752115
1120113a8aa19
12a12556292b
134bb71b465b
14274571b067
1515504be4e5
hexc225744b3

52115752115 has 32 divisors (see below), whose sum is σ = 72356928000. Its totient is φ = 35296072704.

The previous prime is 52115752103. The next prime is 52115752151. The reversal of 52115752115 is 51125751125.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52115752115 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1678724 + ... + 1709486.

It is an arithmetic number, because the mean of its divisors is an integer number (2261154000).

Almost surely, 252115752115 is an apocalyptic number.

52115752115 is a deficient number, since it is larger than the sum of its proper divisors (20241175885).

52115752115 is a wasteful number, since it uses less digits than its factorization.

52115752115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31371.

The product of its digits is 17500, while the sum is 35.

The spelling of 52115752115 in words is "fifty-two billion, one hundred fifteen million, seven hundred fifty-two thousand, one hundred fifteen".

Divisors: 1 5 7 35 97 485 499 679 2495 3395 3493 17465 30763 48403 153815 215341 242015 338821 1076705 1694105 2984011 14920055 15350737 20888077 76753685 104440385 107455159 537275795 1489021489 7445107445 10423150423 52115752115