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8220063 = 319314197
BaseRepresentation
bin11111010110110110011111
3120110121210210
4133112312133
54101020223
6452103503
7126604125
oct37266637
916417723
108220063
114704945
122904b93
13191a657
14113d915
15ac5893
hex7d6d9f

8220063 has 8 divisors (see below), whose sum is σ = 11017648. Its totient is φ = 5451264.

The previous prime is 8220013. The next prime is 8220089. The reversal of 8220063 is 3600228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8220063 - 213 = 8211871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6520 + ... + 7677.

It is an arithmetic number, because the mean of its divisors is an integer number (1377206).

Almost surely, 28220063 is an apocalyptic number.

8220063 is a deficient number, since it is larger than the sum of its proper divisors (2797585).

8220063 is a wasteful number, since it uses less digits than its factorization.

8220063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14393.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 8220063 is about 2867.0652242319. The cubic root of 8220063 is about 201.8172955041.

The spelling of 8220063 in words is "eight million, two hundred twenty thousand, sixty-three".

Divisors: 1 3 193 579 14197 42591 2740021 8220063