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8105050666 = 2191097194431
BaseRepresentation
bin1111000110001100…
…10100001000101010
3202220212002020022201
413203012110020222
5113044343110131
63420131210414
7404564536216
oct74306241052
922825066281
108105050666
11348a0a9589
1216a2446a0a
139c223478b
1456c611946
1532684b761
hex1e319422a

8105050666 has 16 divisors (see below), whose sum is σ = 12809180160. Its totient is φ = 3835715040.

The previous prime is 8105050649. The next prime is 8105050697. The reversal of 8105050666 is 6660505018.

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, 55530 + ... + 138901.

It is an arithmetic number, because the mean of its divisors is an integer number (800573760).

Almost surely, 28105050666 is an apocalyptic number.

8105050666 is a deficient number, since it is larger than the sum of its proper divisors (4704129494).

8105050666 is a wasteful number, since it uses less digits than its factorization.

8105050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195549.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 8105050666 is about 90028.0548829086. The cubic root of 8105050666 is about 2008.7161810784.

The spelling of 8105050666 in words is "eight billion, one hundred five million, fifty thousand, six hundred sixty-six".

Divisors: 1 2 19 38 1097 2194 20843 41686 194431 388862 3694189 7388378 213290807 426581614 4052525333 8105050666