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166708868 = 22172451601
BaseRepresentation
bin10011110111111…
…00011010000100
3102121200200120112
421323330122010
5320134140433
624313052152
74063000454
oct1173743204
9377620515
10166708868
1186114927
12479b7058
13286cc301
14181d7d64
15e980348
hex9efc684

166708868 has 12 divisors (see below), whose sum is σ = 308901852. Its totient is φ = 78451200.

The previous prime is 166708847. The next prime is 166708873. The reversal of 166708868 is 868807661.

166708868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 123254404 + 43454464 = 11102^2 + 6592^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225733 + ... + 1225868.

It is an arithmetic number, because the mean of its divisors is an integer number (25741821).

Almost surely, 2166708868 is an apocalyptic number.

It is an amenable number.

166708868 is a deficient number, since it is larger than the sum of its proper divisors (142192984).

166708868 is a wasteful number, since it uses less digits than its factorization.

166708868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451622 (or 2451620 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 166708868 is about 12911.5788345190. The cubic root of 166708868 is about 550.3676528068.

The spelling of 166708868 in words is "one hundred sixty-six million, seven hundred eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 34 68 2451601 4903202 9806404 41677217 83354434 166708868