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28822533 = 345721023
BaseRepresentation
bin110110111110…
…0110000000101
32000020100002020
41231330300011
524334310113
62505433353
7466662465
oct155746005
960210066
1028822533
11152a6883
12979b859
135c8206c
143b83ba5
1527e5023
hex1b7cc05

28822533 has 8 divisors (see below), whose sum is σ = 38515968. Its totient is φ = 19172064.

The previous prime is 28822511. The next prime is 28822537. The reversal of 28822533 is 33522882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28822533 - 25 = 28822501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28822494 and 28822503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28822537) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9141 + ... + 11882.

It is an arithmetic number, because the mean of its divisors is an integer number (4814496).

Almost surely, 228822533 is an apocalyptic number.

It is an amenable number.

28822533 is a deficient number, since it is larger than the sum of its proper divisors (9693435).

28822533 is a wasteful number, since it uses less digits than its factorization.

28822533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21483.

The product of its digits is 23040, while the sum is 33.

The square root of 28822533 is about 5368.6621238443. The cubic root of 28822533 is about 306.6036930922.

The spelling of 28822533 in words is "twenty-eight million, eight hundred twenty-two thousand, five hundred thirty-three".

Divisors: 1 3 457 1371 21023 63069 9607511 28822533