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8219027894 = 2711531006987
BaseRepresentation
bin1111010011110010…
…00110100110110110
3210012210112212200112
413221321012212312
5113313032343034
63435322143022
7410450404310
oct75171064666
923183485615
108219027894
113538477340
121714651a72
13a0ca3021c
1457d8007b0
153318627ce
hex1e9e469b6

8219027894 has 32 divisors (see below), whose sum is σ = 15660677376. Its totient is φ = 3141796320.

The previous prime is 8219027867. The next prime is 8219027911. The reversal of 8219027894 is 4987209128.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495332 + ... + 511655.

It is an arithmetic number, because the mean of its divisors is an integer number (489396168).

Almost surely, 28219027894 is an apocalyptic number.

8219027894 is a deficient number, since it is larger than the sum of its proper divisors (7441649482).

8219027894 is a wasteful number, since it uses less digits than its factorization.

8219027894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007060.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 8219027894 is about 90658.8544710333. The cubic root of 8219027894 is about 2018.0882391203.

The spelling of 8219027894 in words is "eight billion, two hundred nineteen million, twenty-seven thousand, eight hundred ninety-four".

Divisors: 1 2 7 11 14 22 53 77 106 154 371 583 742 1166 4081 8162 1006987 2013974 7048909 11076857 14097818 22153714 53370311 77537999 106740622 155075998 373592177 587073421 747184354 1174146842 4109513947 8219027894