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806956072 = 23132596861
BaseRepresentation
bin110000000110010…
…010110000101000
32002020102121121221
4300012102300220
53123040043242
6212023511424
725666004416
oct6006226050
92066377557
10806956072
1138456204a
121a62b8574
13cb24a100
147925a2b6
154ac9d167
hex30192c28

806956072 has 24 divisors (see below), whose sum is σ = 1638386190. Its totient is φ = 372440640.

The previous prime is 806956069. The next prime is 806956093. The reversal of 806956072 is 270659608.

It can be written as a sum of positive squares in 3 ways, for example, as 455993316 + 350962756 = 21354^2 + 18734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 297079 + ... + 299782.

Almost surely, 2806956072 is an apocalyptic number.

It is an amenable number.

806956072 is an abundant number, since it is smaller than the sum of its proper divisors (831430118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806956072 is a wasteful number, since it uses less digits than its factorization.

806956072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596893 (or 596876 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 806956072 is about 28406.9722427435. The cubic root of 806956072 is about 931.0006080103. Note that the first 3 decimals are identical.

The spelling of 806956072 in words is "eight hundred six million, nine hundred fifty-six thousand, seventy-two".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 596861 1193722 2387444 4774888 7759193 15518386 31036772 62073544 100869509 201739018 403478036 806956072