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8076820 = 2252831427
BaseRepresentation
bin11110110011111000010100
3120012100022111
4132303320110
54031424240
6445040404
7125436403
oct36637024
916170274
108076820
114617264
122856104
13189a3ab
14110363a
15a981ea
hex7b3e14

8076820 has 24 divisors (see below), whose sum is σ = 17033184. Its totient is φ = 3217056.

The previous prime is 8076811. The next prime is 8076821. The reversal of 8076820 is 286708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8076821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4947 + ... + 6373.

It is an arithmetic number, because the mean of its divisors is an integer number (709716).

Almost surely, 28076820 is an apocalyptic number.

It is an amenable number.

8076820 is an abundant number, since it is smaller than the sum of its proper divisors (8956364).

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

8076820 is a wasteful number, since it uses less digits than its factorization.

8076820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 8076820 is about 2841.9746656154. The cubic root of 8076820 is about 200.6381284616.

The spelling of 8076820 in words is "eight million, seventy-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 283 566 1132 1415 1427 2830 2854 5660 5708 7135 14270 28540 403841 807682 1615364 2019205 4038410 8076820