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8240668 = 223166457
BaseRepresentation
bin11111011011111000011100
3120111200001221
4133123320130
54102200133
6452343124
7130021162
oct37337034
916450057
108240668
114719377
122914aa4
131926b47
141147232
15acba2d
hex7dbe1c

8240668 has 12 divisors (see below), whose sum is σ = 14886592. Its totient is φ = 3987360.

The previous prime is 8240663. The next prime is 8240671. The reversal of 8240668 is 8660428.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8240663) 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, 33105 + ... + 33352.

Almost surely, 28240668 is an apocalyptic number.

It is an amenable number.

8240668 is a deficient number, since it is larger than the sum of its proper divisors (6645924).

8240668 is a wasteful number, since it uses less digits than its factorization.

8240668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66492 (or 66490 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 8240668 is about 2870.6563709368. The cubic root of 8240668 is about 201.9857847069.

The spelling of 8240668 in words is "eight million, two hundred forty thousand, six hundred sixty-eight".

Divisors: 1 2 4 31 62 124 66457 132914 265828 2060167 4120334 8240668