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8067820 = 225403391
BaseRepresentation
bin11110110001101011101100
3120011212222011
4132301223230
54031132240
6444531004
7125401225
oct36615354
916155864
108067820
114610522
122850a64
131896277
14110024c
15a956ea
hex7b1aec

8067820 has 12 divisors (see below), whose sum is σ = 16942464. Its totient is φ = 3227120.

The previous prime is 8067817. The next prime is 8067821. The reversal of 8067820 is 287608.

8067820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8067821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201676 + ... + 201715.

It is an arithmetic number, because the mean of its divisors is an integer number (1411872).

Almost surely, 28067820 is an apocalyptic number.

It is an amenable number.

8067820 is an abundant number, since it is smaller than the sum of its proper divisors (8874644).

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

8067820 is a wasteful number, since it uses less digits than its factorization.

8067820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403400 (or 403398 counting only the distinct ones).

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

The square root of 8067820 is about 2840.3908181798. The cubic root of 8067820 is about 200.5635770794.

The spelling of 8067820 in words is "eight million, sixty-seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 403391 806782 1613564 2016955 4033910 8067820