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23028663 = 373313313
BaseRepresentation
bin101011111011…
…0001110110111
31121022222101110
41113312032313
521343404123
62141330103
7366511650
oct127661667
947288343
1023028663
1111aa9859
127866933
134a03b38
1430b6527
15204d493
hex15f63b7

23028663 has 16 divisors (see below), whose sum is σ = 35207936. Its totient is φ = 13115520.

The previous prime is 23028631. The next prime is 23028667. The reversal of 23028663 is 36682032.

It is not a de Polignac number, because 23028663 - 25 = 23028631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23028663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23028667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5295 + ... + 8607.

It is an arithmetic number, because the mean of its divisors is an integer number (2200496).

Almost surely, 223028663 is an apocalyptic number.

23028663 is a deficient number, since it is larger than the sum of its proper divisors (12179273).

23028663 is a wasteful number, since it uses less digits than its factorization.

23028663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 23028663 is about 4798.8189171920. The cubic root of 23028663 is about 284.5047848277.

The spelling of 23028663 in words is "twenty-three million, twenty-eight thousand, six hundred sixty-three".

Divisors: 1 3 7 21 331 993 2317 3313 6951 9939 23191 69573 1096603 3289809 7676221 23028663