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8628940 = 225431447
BaseRepresentation
bin100000111010…
…101011001100
3121020101200101
4200322223030
54202111230
6504540444
7133226155
oct40725314
917211611
108628940
114964061
122a81724
131a317a8
14120892c
15b56aca
hex83aacc

8628940 has 12 divisors (see below), whose sum is σ = 18120816. Its totient is φ = 3451568.

The previous prime is 8628937. The next prime is 8628967. The reversal of 8628940 is 498268.

It is a self number, because there is not a number n which added to its sum of digits gives 8628940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215704 + ... + 215743.

It is an arithmetic number, because the mean of its divisors is an integer number (1510068).

Almost surely, 28628940 is an apocalyptic number.

It is an amenable number.

8628940 is an abundant number, since it is smaller than the sum of its proper divisors (9491876).

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

8628940 is a wasteful number, since it uses less digits than its factorization.

8628940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431456 (or 431454 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 8628940 is about 2937.5057446752. The cubic root of 8628940 is about 205.1095191125.

The spelling of 8628940 in words is "eight million, six hundred twenty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 431447 862894 1725788 2157235 4314470 8628940