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52777552780 = 2252638877639
BaseRepresentation
bin110001001001110010…
…011000101110001100
312001020011021110202001
4301021302120232030
51331042023142110
640125022042044
73545606540161
oct611162305614
9161204243661
1052777552780
1120423609617
12a28b119324
134c9133a994
1427a9590068
15158d64863a
hexc49c98b8c

52777552780 has 12 divisors (see below), whose sum is σ = 110832860880. Its totient is φ = 21111021104.

The previous prime is 52777552771. The next prime is 52777552781. The reversal of 52777552780 is 8725577725.

It is not an unprimeable number, because it can be changed into a prime (52777552781) 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, 1319438800 + ... + 1319438839.

It is an arithmetic number, because the mean of its divisors is an integer number (9236071740).

Almost surely, 252777552780 is an apocalyptic number.

It is an amenable number.

52777552780 is an abundant number, since it is smaller than the sum of its proper divisors (58055308100).

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

52777552780 is a wasteful number, since it uses less digits than its factorization.

52777552780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638877648 (or 2638877646 counting only the distinct ones).

The product of its (nonzero) digits is 9604000, while the sum is 55.

The spelling of 52777552780 in words is "fifty-two billion, seven hundred seventy-seven million, five hundred fifty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2638877639 5277755278 10555510556 13194388195 26388776390 52777552780