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23028651 = 33852913
BaseRepresentation
bin101011111011…
…0001110101011
31121022222101000
41113312032223
521343404101
62141330043
7366511632
oct127661653
947288330
1023028651
1111aa9848
127866923
134a03b29
1430b6519
15204d486
hex15f63ab

23028651 has 8 divisors (see below), whose sum is σ = 34116560. Its totient is φ = 15352416.

The previous prime is 23028631. The next prime is 23028667. The reversal of 23028651 is 15682032.

23028651 is a `hidden beast` number, since 2 + 3 + 0 + 2 + 8 + 651 = 666.

It is not a de Polignac number, because 23028651 - 25 = 23028619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 852913 = 23028651 / (2 + 3 + 0 + 2 + 8 + 6 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23028601) 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, 426430 + ... + 426483.

It is an arithmetic number, because the mean of its divisors is an integer number (4264570).

Almost surely, 223028651 is an apocalyptic number.

23028651 is a deficient number, since it is larger than the sum of its proper divisors (11087909).

23028651 is an equidigital number, since it uses as much as digits as its factorization.

23028651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852922 (or 852916 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 23028651 is about 4798.8176668842. The cubic root of 23028651 is about 284.5047354102.

The spelling of 23028651 in words is "twenty-three million, twenty-eight thousand, six hundred fifty-one".

Divisors: 1 3 9 27 852913 2558739 7676217 23028651