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808202196 = 223222450061
BaseRepresentation
bin110000001011000…
…010111111010100
32002022202220222200
4300023002333110
53123344432241
6212110324500
726012414424
oct6013027724
92068686880
10808202196
113852332aa
121a67b9730
13cb595369
14794a2484
154ae474b6
hex302c2fd4

808202196 has 18 divisors (see below), whose sum is σ = 2042955642. Its totient is φ = 269400720.

The previous prime is 808202123. The next prime is 808202251. The reversal of 808202196 is 691202808.

It can be written as a sum of positive squares in only one way, i.e., 565964100 + 242238096 = 23790^2 + 15564^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22450061 = 808202196 / (8 + 0 + 8 + 2 + 0 + 2 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 808202196.

It is a congruent number.

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, 11224995 + ... + 11225066.

Almost surely, 2808202196 is an apocalyptic number.

It is an amenable number.

808202196 is an abundant number, since it is smaller than the sum of its proper divisors (1234753446).

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

808202196 is a wasteful number, since it uses less digits than its factorization.

808202196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22450071 (or 22450066 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 808202196 is about 28428.8971998563. The cubic root of 808202196 is about 931.4795872175.

The spelling of 808202196 in words is "eight hundred eight million, two hundred two thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 22450061 44900122 67350183 89800244 134700366 202050549 269400732 404101098 808202196