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9028255 = 51805651
BaseRepresentation
bin100010011100…
…001010011111
3121222200102211
4202130022133
54302401010
6521301251
7136511305
oct42341237
917880384
109028255
115107075
123034827
131b41482
1412b0275
15bd508a
hex89c29f

9028255 has 4 divisors (see below), whose sum is σ = 10833912. Its totient is φ = 7222600.

The previous prime is 9028247. The next prime is 9028267. The reversal of 9028255 is 5528209.

It is a happy number.

9028255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5528209 = 43128563.

It is not a de Polignac number, because 9028255 - 23 = 9028247 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902821 + ... + 902830.

It is an arithmetic number, because the mean of its divisors is an integer number (2708478).

Almost surely, 29028255 is an apocalyptic number.

9028255 is a deficient number, since it is larger than the sum of its proper divisors (1805657).

9028255 is a wasteful number, since it uses less digits than its factorization.

9028255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805656.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 9028255 is about 3004.7054764153. The cubic root of 9028255 is about 208.2258318269.

The spelling of 9028255 in words is "nine million, twenty-eight thousand, two hundred fifty-five".

Divisors: 1 5 1805651 9028255