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8209012 = 227293179
BaseRepresentation
bin11111010100001001110100
3120110001122111
4133110021310
54100142022
6451540404
7126526660
oct37241164
916401574
108209012
1146a7609
1228ba704
131915606
1411398a0
15ac2477
hex7d4274

8209012 has 12 divisors (see below), whose sum is σ = 16418080. Its totient is φ = 3518136.

The previous prime is 8209009. The next prime is 8209031. The reversal of 8209012 is 2109028.

8209012 is an admirable number.

It is a super-2 number, since 2×82090122 = 134775756032288, which contains 22 as substring.

It is a congruent number.

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, 146562 + ... + 146617.

Almost surely, 28209012 is an apocalyptic number.

It is an amenable number.

8209012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8209012 is a wasteful number, since it uses less digits than its factorization.

8209012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293190 (or 293188 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8209012 is about 2865.1373440029. The cubic root of 8209012 is about 201.7268143185.

The spelling of 8209012 in words is "eight million, two hundred nine thousand, twelve".

Divisors: 1 2 4 7 14 28 293179 586358 1172716 2052253 4104506 8209012