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806824868 = 221491353733
BaseRepresentation
bin110000000101110…
…010101110100100
32002020011221122112
4300011302232210
53123021343433
6212021020152
725664620043
oct6005625644
92066157575
10806824868
11384482513
121a6254658
13cb202485
147922455a
154ac74348
hex30172ba4

806824868 has 12 divisors (see below), whose sum is σ = 1421420700. Its totient is φ = 400704672.

The previous prime is 806824841. The next prime is 806824877. The reversal of 806824868 is 868428608.

It can be written as a sum of positive squares in 2 ways, for example, as 465610084 + 341214784 = 21578^2 + 18472^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676271 + ... + 677462.

It is an arithmetic number, because the mean of its divisors is an integer number (118451725).

Almost surely, 2806824868 is an apocalyptic number.

It is an amenable number.

806824868 is a deficient number, since it is larger than the sum of its proper divisors (614595832).

806824868 is a wasteful number, since it uses less digits than its factorization.

806824868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353886 (or 1353884 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 50.

The square root of 806824868 is about 28404.6627862399. The cubic root of 806824868 is about 930.9501477565.

The spelling of 806824868 in words is "eight hundred six million, eight hundred twenty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 4 149 298 596 1353733 2707466 5414932 201706217 403412434 806824868