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8327980 = 225416399
BaseRepresentation
bin11111110001001100101100
3120200002211201
4133301030230
54112443410
6454255244
7130533553
oct37611454
916602751
108327980
114778a31
122957524
1319577cb
14116ad9a
15ae783a
hex7f132c

8327980 has 12 divisors (see below), whose sum is σ = 17488800. Its totient is φ = 3331184.

The previous prime is 8327887. The next prime is 8327983. The reversal of 8327980 is 897238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8327983) 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 3 ways as a sum of consecutive naturals, for example, 208180 + ... + 208219.

It is an arithmetic number, because the mean of its divisors is an integer number (1457400).

Almost surely, 28327980 is an apocalyptic number.

It is an amenable number.

8327980 is an abundant number, since it is smaller than the sum of its proper divisors (9160820).

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

8327980 is a wasteful number, since it uses less digits than its factorization.

8327980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416408 (or 416406 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 8327980 is about 2885.8239724557. The cubic root of 8327980 is about 202.6966438133.

The spelling of 8327980 in words is "eight million, three hundred twenty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 416399 832798 1665596 2081995 4163990 8327980