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56648442220 = 2252832422111
BaseRepresentation
bin110100110000100000…
…101010000101101100
312102012221001000210121
4310300200222011230
51412004000122340
642005100414324
74043541546136
oct646040520554
9172187030717
1056648442220
112202a6290a7
12ab8b5473a4
13545a2956c6
142a556d6056
1517183b894a
hexd3082a16c

56648442220 has 12 divisors (see below), whose sum is σ = 118961728704. Its totient is φ = 22659376880.

The previous prime is 56648442197. The next prime is 56648442229. The reversal of 56648442220 is 2224484665.

It is not an unprimeable number, because it can be changed into a prime (56648442229) 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, 1416211036 + ... + 1416211075.

It is an arithmetic number, because the mean of its divisors is an integer number (9913477392).

Almost surely, 256648442220 is an apocalyptic number.

It is an amenable number.

56648442220 is an abundant number, since it is smaller than the sum of its proper divisors (62313286484).

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

56648442220 is a wasteful number, since it uses less digits than its factorization.

56648442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832422120 (or 2832422118 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 56648442220 in words is "fifty-six billion, six hundred forty-eight million, four hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2832422111 5664844222 11329688444 14162110555 28324221110 56648442220