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208494708 = 22317374559
BaseRepresentation
bin11000110110101…
…10000001110100
3112112022121222020
430123112001310
5411333312313
632404433140
75111114202
oct1433260164
9475277866
10208494708
11a7765184
12599a87b0
133426c966
141d994072
1513486323
hexc6d6074

208494708 has 12 divisors (see below), whose sum is σ = 486487680. Its totient is φ = 69498232.

The previous prime is 208494707. The next prime is 208494721. The reversal of 208494708 is 807494802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 208494708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208494707) by changing a digit.

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, 8687268 + ... + 8687291.

It is an arithmetic number, because the mean of its divisors is an integer number (40540640).

Almost surely, 2208494708 is an apocalyptic number.

It is an amenable number.

208494708 is an abundant number, since it is smaller than the sum of its proper divisors (277992972).

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

208494708 is a wasteful number, since it uses less digits than its factorization.

208494708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17374566 (or 17374564 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 208494708 is about 14439.3458300575. The cubic root of 208494708 is about 592.9685759032.

The spelling of 208494708 in words is "two hundred eight million, four hundred ninety-four thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 17374559 34749118 52123677 69498236 104247354 208494708