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8197212 = 2234116661
BaseRepresentation
bin11111010001010001011100
3120102110110110
4133101101130
54044302322
6451410020
7126450402
oct37212134
916373413
108197212
114699761
1228b3910
13191012a
141135472
15abdc0c
hex7d145c

8197212 has 24 divisors (see below), whose sum is σ = 19594512. Its totient is φ = 2665600.

The previous prime is 8197201. The next prime is 8197271. The reversal of 8197212 is 2127918.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8197212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7839 + ... + 8822.

It is an arithmetic number, because the mean of its divisors is an integer number (816438).

Almost surely, 28197212 is an apocalyptic number.

8197212 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8197212 is an abundant number, since it is smaller than the sum of its proper divisors (11397300).

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

8197212 is a wasteful number, since it uses less digits than its factorization.

8197212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16709 (or 16707 counting only the distinct ones).

The product of its digits is 2016, while the sum is 30.

The square root of 8197212 is about 2863.0773653536. The cubic root of 8197212 is about 201.6301109282.

The spelling of 8197212 in words is "eight million, one hundred ninety-seven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 16661 33322 49983 66644 99966 199932 683101 1366202 2049303 2732404 4098606 8197212