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52991240082 = 2311802897577
BaseRepresentation
bin110001010110100001…
…100010011110010010
312001210001100220121120
4301112201202132102
51332011224140312
640202134103110
73554113052214
oct612641423622
9161701326546
1052991240082
112052319aaa0
12a32a7aaa96
134cc66a7c81
1427c9ad65b4
1515a22a828c
hexc56862792

52991240082 has 16 divisors (see below), whose sum is σ = 115617251232. Its totient is φ = 16057951520.

The previous prime is 52991240069. The next prime is 52991240117. The reversal of 52991240082 is 28004219925.

It is a happy 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, 401448723 + ... + 401448854.

It is an arithmetic number, because the mean of its divisors is an integer number (7226078202).

Almost surely, 252991240082 is an apocalyptic number.

52991240082 is an abundant number, since it is smaller than the sum of its proper divisors (62626011150).

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

52991240082 is a wasteful number, since it uses less digits than its factorization.

52991240082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802897593.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 52991240082 in words is "fifty-two billion, nine hundred ninety-one million, two hundred forty thousand, eighty-two".

Divisors: 1 2 3 6 11 22 33 66 802897577 1605795154 2408692731 4817385462 8831873347 17663746694 26495620041 52991240082