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286966828 = 22401178907
BaseRepresentation
bin10001000110101…
…100010000101100
3201222222102111001
4101012230100230
51041430414303
644250410044
710053114661
oct2106542054
9658872431
10286966828
11137a92475
1280130924
13475b6775
142a17da68
151a2d731d
hex111ac42c

286966828 has 12 divisors (see below), whose sum is σ = 503447112. Its totient is φ = 143124800.

The previous prime is 286966793. The next prime is 286966859. The reversal of 286966828 is 828669682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87850 + ... + 91057.

It is an arithmetic number, because the mean of its divisors is an integer number (41953926).

Almost surely, 2286966828 is an apocalyptic number.

It is an amenable number.

286966828 is a deficient number, since it is larger than the sum of its proper divisors (216480284).

286966828 is a wasteful number, since it uses less digits than its factorization.

286966828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179312 (or 179310 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 286966828 is about 16940.0952771819. The cubic root of 286966828 is about 659.5948140486.

The spelling of 286966828 in words is "two hundred eighty-six million, nine hundred sixty-six thousand, eight hundred twenty-eight".

Divisors: 1 2 4 401 802 1604 178907 357814 715628 71741707 143483414 286966828