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52280638120 = 2351307015953
BaseRepresentation
bin110000101100001010…
…110011101010101000
311222221112020120222101
4300230022303222220
51324032320404440
640003431303144
73530364043324
oct605412635250
9158845216871
1052280638120
112019906a247
12a17081aab4
134c123c6039
14275d59c984
15155ebde69a
hexc2c2b3aa8

52280638120 has 16 divisors (see below), whose sum is σ = 117631435860. Its totient is φ = 20912255232.

The previous prime is 52280638117. The next prime is 52280638121. The reversal of 52280638120 is 2183608225.

It can be written as a sum of positive squares in 2 ways, for example, as 51548069764 + 732568356 = 227042^2 + 27066^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52280638120.

It is not an unprimeable number, because it can be changed into a prime (52280638121) 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, 653507937 + ... + 653508016.

Almost surely, 252280638120 is an apocalyptic number.

It is an amenable number.

52280638120 is an abundant number, since it is smaller than the sum of its proper divisors (65350797740).

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

52280638120 is a wasteful number, since it uses less digits than its factorization.

52280638120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307015964 (or 1307015960 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 52280638120 in words is "fifty-two billion, two hundred eighty million, six hundred thirty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1307015953 2614031906 5228063812 6535079765 10456127624 13070159530 26140319060 52280638120