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8668340 = 2251632659
BaseRepresentation
bin100001000100…
…010010110100
3121022101201122
4201010102310
54204341330
6505443112
7133452062
oct41042264
917271648
108668340
11499071a
122aa0498
131a466c5
141219032
15b635e5
hex8444b4

8668340 has 24 divisors (see below), whose sum is σ = 18322080. Its totient is φ = 3444768.

The previous prime is 8668301. The next prime is 8668349. The reversal of 8668340 is 438668.

It is a self number, because there is not a number n which added to its sum of digits gives 8668340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931 + ... + 4589.

It is an arithmetic number, because the mean of its divisors is an integer number (763420).

Almost surely, 28668340 is an apocalyptic number.

It is an amenable number.

8668340 is an abundant number, since it is smaller than the sum of its proper divisors (9653740).

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

8668340 is a wasteful number, since it uses less digits than its factorization.

8668340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 8668340 is about 2944.2044765947. The cubic root of 8668340 is about 205.4212239228.

The spelling of 8668340 in words is "eight million, six hundred sixty-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 2659 3260 5318 10636 13295 26590 53180 433417 866834 1733668 2167085 4334170 8668340