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23285668 = 227831631
BaseRepresentation
bin101100011010…
…0111110100100
31121211000221011
41120310332210
521430120133
62151032004
7401632150
oct130647644
947730834
1023285668
111216495a
12796b604
134a93b03
143142060
15209e6cd
hex1634fa4

23285668 has 12 divisors (see below), whose sum is σ = 46571392. Its totient is φ = 9979560.

The previous prime is 23285641. The next prime is 23285671. The reversal of 23285668 is 86658232.

23285668 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 23285668.

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, 415788 + ... + 415843.

Almost surely, 223285668 is an apocalyptic number.

23285668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23285668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23285668 is a wasteful number, since it uses less digits than its factorization.

23285668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831642 (or 831640 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 23285668 is about 4825.5225623760. The cubic root of 23285668 is about 285.5592506992.

The spelling of 23285668 in words is "twenty-three million, two hundred eighty-five thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 831631 1663262 3326524 5821417 11642834 23285668