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52782780108 = 2234398565009
BaseRepresentation
bin110001001010000110…
…010100111011001100
312001020112010001021210
4301022012110323030
51331044342430413
640125330054420
73546002141202
oct611206247314
9161215101253
1052782780108
1120426559a23
12a290a1a410
134c9244b086
1427aa151072
15158dd2c3c3
hexc4a194ecc

52782780108 has 12 divisors (see below), whose sum is σ = 123159820280. Its totient is φ = 17594260032.

The previous prime is 52782780067. The next prime is 52782780119. The reversal of 52782780108 is 80108728725.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2199282493 + ... + 2199282516.

Almost surely, 252782780108 is an apocalyptic number.

It is an amenable number.

52782780108 is an abundant number, since it is smaller than the sum of its proper divisors (70377040172).

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

52782780108 is a wasteful number, since it uses less digits than its factorization.

52782780108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398565016 (or 4398565014 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 48.

The spelling of 52782780108 in words is "fifty-two billion, seven hundred eighty-two million, seven hundred eighty thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 4398565009 8797130018 13195695027 17594260036 26391390054 52782780108