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8078840212 = 2273243711353
BaseRepresentation
bin1111000011000100…
…10101000110010100
3202212000202121100011
413201202111012110
5113021140341322
63413353330004
7404126003002
oct74142250624
922760677304
108078840212
113476327253
121695706904
139b9988631
14568d4ba72
153243c0677
hex1e1895194

8078840212 has 24 divisors (see below), whose sum is σ = 14338784936. Its totient is φ = 3982099968.

The previous prime is 8078840171. The next prime is 8078840227. The reversal of 8078840212 is 2120488708.

It can be written as a sum of positive squares in 4 ways, for example, as 2428912656 + 5649927556 = 49284^2 + 75166^2 .

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, 705928 + ... + 717280.

Almost surely, 28078840212 is an apocalyptic number.

It is an amenable number.

8078840212 is a deficient number, since it is larger than the sum of its proper divisors (6259944724).

8078840212 is a wasteful number, since it uses less digits than its factorization.

8078840212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13867 (or 13865 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 8078840212 is about 89882.3687493827. The cubic root of 8078840212 is about 2006.5485524947.

The spelling of 8078840212 in words is "eight billion, seventy-eight million, eight hundred forty thousand, two hundred twelve".

Divisors: 1 2 4 73 146 292 2437 4874 9748 11353 22706 45412 177901 355802 711604 828769 1657538 3315076 27667261 55334522 110669044 2019710053 4039420106 8078840212