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8020386 = 2321140507
BaseRepresentation
bin11110100110000110100010
3120002110220100
4132212012202
54023123021
6443523230
7125113023
oct36460642
916073810
108020386
114588920
122829516
13187a7ba
1410cac4a
15a86626
hex7a61a2

8020386 has 24 divisors (see below), whose sum is σ = 18957744. Its totient is φ = 2430360.

The previous prime is 8020381. The next prime is 8020387. The reversal of 8020386 is 6830208.

It is not an unprimeable number, because it can be changed into a prime (8020381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20056 + ... + 20451.

It is an arithmetic number, because the mean of its divisors is an integer number (789906).

Almost surely, 28020386 is an apocalyptic number.

8020386 is an abundant number, since it is smaller than the sum of its proper divisors (10937358).

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

8020386 is a wasteful number, since it uses less digits than its factorization.

8020386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40526 (or 40523 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8020386 is about 2832.0286015505. The cubic root of 8020386 is about 200.1697392355.

The spelling of 8020386 in words is "eight million, twenty thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 40507 81014 121521 243042 364563 445577 729126 891154 1336731 2673462 4010193 8020386