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52909293980 = 2252645464699
BaseRepresentation
bin110001010001101000…
…111100000110011100
312001120100011121200202
4301101220330012130
51331324234401410
640150045443032
73552066402254
oct612150740634
9161510147622
1052909293980
1120490a0a744
12a307270478
134cb2715b5a
1427bcc84964
151599ebcca5
hexc51a3c19c

52909293980 has 12 divisors (see below), whose sum is σ = 111109517400. Its totient is φ = 21163717584.

The previous prime is 52909293947. The next prime is 52909294007. The reversal of 52909293980 is 8939290925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322732330 + ... + 1322732369.

It is an arithmetic number, because the mean of its divisors is an integer number (9259126450).

Almost surely, 252909293980 is an apocalyptic number.

It is an amenable number.

52909293980 is an abundant number, since it is smaller than the sum of its proper divisors (58200223420).

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

52909293980 is a wasteful number, since it uses less digits than its factorization.

52909293980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645464708 (or 2645464706 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 52909293980 in words is "fifty-two billion, nine hundred nine million, two hundred ninety-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2645464699 5290929398 10581858796 13227323495 26454646990 52909293980