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8217745068 = 2231352677853
BaseRepresentation
bin1111010011101000…
…01101011010101100
3210012201010200222110
413221310031122230
5113312220320233
63435234444020
7410433452301
oct75164153254
923181120873
108217745068
113537780555
121714133610
13a0c6a1360
1457d5890a8
153316ac663
hex1e9d0d6ac

8217745068 has 24 divisors (see below), whose sum is σ = 20649718768. Its totient is φ = 2528536896.

The previous prime is 8217745061. The next prime is 8217745069. The reversal of 8217745068 is 8605477128.

It is not an unprimeable number, because it can be changed into a prime (8217745061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26338771 + ... + 26339082.

Almost surely, 28217745068 is an apocalyptic number.

It is an amenable number.

8217745068 is an abundant number, since it is smaller than the sum of its proper divisors (12431973700).

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

8217745068 is a wasteful number, since it uses less digits than its factorization.

8217745068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52677873 (or 52677871 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 8217745068 is about 90651.7791772451. The cubic root of 8217745068 is about 2017.9832392429.

The spelling of 8217745068 in words is "eight billion, two hundred seventeen million, seven hundred forty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 52677853 105355706 158033559 210711412 316067118 632134236 684812089 1369624178 2054436267 2739248356 4108872534 8217745068