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49064640860 = 22517483140321
BaseRepresentation
bin101101101100011110…
…110000000101011100
311200122101210000002202
4231230132300011130
51300441022001420
634312345311032
73354603365114
oct555436600534
9150571700082
1049064640860
111989878a974
129613795478
13481c045c91
14253640c044
1514226d1575
hexb6c7b015c

49064640860 has 24 divisors (see below), whose sum is σ = 103042373616. Its totient is φ = 19624593920.

The previous prime is 49064640847. The next prime is 49064640883. The reversal of 49064640860 is 6804646094.

It is a happy number.

49064640860 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 7 ways as a sum of consecutive naturals, for example, 279500 + ... + 419820.

It is an arithmetic number, because the mean of its divisors is an integer number (4293432234).

Almost surely, 249064640860 is an apocalyptic number.

It is an amenable number.

49064640860 is an abundant number, since it is smaller than the sum of its proper divisors (53977732756).

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

49064640860 is a wasteful number, since it uses less digits than its factorization.

49064640860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157813 (or 157811 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 49064640860 in words is "forty-nine billion, sixty-four million, six hundred forty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 17483 34966 69932 87415 140321 174830 280642 349660 561284 701605 1403210 2806420 2453232043 4906464086 9812928172 12266160215 24532320430 49064640860