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28126323 = 323125147
BaseRepresentation
bin110101101001…
…0110001110011
31221220222001200
41223102301303
524200020243
62442502243
7461032641
oct153226163
957828050
1028126323
11149707a5
129504983
135a9a1c4
143a42191
152708ad3
hex1ad2c73

28126323 has 6 divisors (see below), whose sum is σ = 40626924. Its totient is φ = 18750876.

The previous prime is 28126297. The next prime is 28126333. The reversal of 28126323 is 32362182.

28126323 is a `hidden beast` number, since 28 + 1 + 2 + 632 + 3 = 666.

It is not a de Polignac number, because 28126323 - 210 = 28125299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28126333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1562565 + ... + 1562582.

It is an arithmetic number, because the mean of its divisors is an integer number (6771154).

Almost surely, 228126323 is an apocalyptic number.

28126323 is a deficient number, since it is larger than the sum of its proper divisors (12500601).

28126323 is a wasteful number, since it uses less digits than its factorization.

28126323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125153 (or 3125150 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 28126323 is about 5303.4255910685. The cubic root of 28126323 is about 304.1148681503.

The spelling of 28126323 in words is "twenty-eight million, one hundred twenty-six thousand, three hundred twenty-three".

Divisors: 1 3 9 3125147 9375441 28126323