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57224668220 = 2252861233411
BaseRepresentation
bin110101010010110110…
…110010010000111100
312110201002022100021022
4311102312302100330
51414144003340340
642142203123312
74064036440256
oct652266622074
9173632270238
1057224668220
11222a5919235
12b110513538
13551c789135
142aac050cd6
15174dc8c3b5
hexd52db243c

57224668220 has 12 divisors (see below), whose sum is σ = 120171803304. Its totient is φ = 22889867280.

The previous prime is 57224668211. The next prime is 57224668247. The reversal of 57224668220 is 2286642275.

57224668220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1430616686 + ... + 1430616725.

It is an arithmetic number, because the mean of its divisors is an integer number (10014316942).

Almost surely, 257224668220 is an apocalyptic number.

It is an amenable number.

57224668220 is an abundant number, since it is smaller than the sum of its proper divisors (62947135084).

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

57224668220 is a wasteful number, since it uses less digits than its factorization.

57224668220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861233420 (or 2861233418 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 57224668220 in words is "fifty-seven billion, two hundred twenty-four million, six hundred sixty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2861233411 5722466822 11444933644 14306167055 28612334110 57224668220