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8089220 = 225404461
BaseRepresentation
bin11110110110111010000100
3120012222022202
4132312322010
54032323340
6445214032
7125520506
oct36667204
916188282
108089220
114625607
122861318
1318a2c29
141107d76
15a9bc15
hex7b6e84

8089220 has 12 divisors (see below), whose sum is σ = 16987404. Its totient is φ = 3235680.

The previous prime is 8089219. The next prime is 8089247. The reversal of 8089220 is 229808.

It can be written as a sum of positive squares in 2 ways, for example, as 2027776 + 6061444 = 1424^2 + 2462^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 202211 + ... + 202250.

It is an arithmetic number, because the mean of its divisors is an integer number (1415617).

Almost surely, 28089220 is an apocalyptic number.

It is an amenable number.

8089220 is an abundant number, since it is smaller than the sum of its proper divisors (8898184).

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

8089220 is a wasteful number, since it uses less digits than its factorization.

8089220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404470 (or 404468 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 8089220 is about 2844.1554106624. The cubic root of 8089220 is about 200.7407530375.

The spelling of 8089220 in words is "eight million, eighty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 404461 808922 1617844 2022305 4044610 8089220