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52715292481 = 411285738841
BaseRepresentation
bin110001000110000100…
…111000011101000001
312001001211010022200001
4301012010320131001
51330430103324411
640114515400001
73544222410235
oct610604703501
9161054108601
1052715292481
11203a1454525
12a2722b3001
134c8147bc77
1427a11c45c5
151587e4adc1
hexc46138741

52715292481 has 4 divisors (see below), whose sum is σ = 54001031364. Its totient is φ = 51429553600.

The previous prime is 52715292391. The next prime is 52715292499. The reversal of 52715292481 is 18429251725.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5167309456 + 47547983025 = 71884^2 + 218055^2 .

It is a cyclic number.

It is not a de Polignac number, because 52715292481 - 219 = 52714768193 is a prime.

It is a super-2 number, since 2×527152924812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52715292781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642869380 + ... + 642869461.

It is an arithmetic number, because the mean of its divisors is an integer number (13500257841).

Almost surely, 252715292481 is an apocalyptic number.

It is an amenable number.

52715292481 is a deficient number, since it is larger than the sum of its proper divisors (1285738883).

52715292481 is a wasteful number, since it uses less digits than its factorization.

52715292481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285738882.

The product of its digits is 403200, while the sum is 46.

The spelling of 52715292481 in words is "fifty-two billion, seven hundred fifteen million, two hundred ninety-two thousand, four hundred eighty-one".

Divisors: 1 41 1285738841 52715292481