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28802334 = 2311436399
BaseRepresentation
bin110110111011…
…1110100011110
32000012022101010
41231313310132
524333133314
62505200050
7466546551
oct155676436
960168333
1028802334
1115292690
129790026
135c75b02
143b7a698
1527de059
hex1b77d1e

28802334 has 16 divisors (see below), whose sum is σ = 62841600. Its totient is φ = 8727960.

The previous prime is 28802327. The next prime is 28802339. The reversal of 28802334 is 43320882.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28802339) 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 7 ways as a sum of consecutive naturals, for example, 218134 + ... + 218265.

It is an arithmetic number, because the mean of its divisors is an integer number (3927600).

Almost surely, 228802334 is an apocalyptic number.

28802334 is an abundant number, since it is smaller than the sum of its proper divisors (34039266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28802334 is a wasteful number, since it uses less digits than its factorization.

28802334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436415.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 28802334 is about 5366.7805992047. The cubic root of 28802334 is about 306.5320531329.

The spelling of 28802334 in words is "twenty-eight million, eight hundred two thousand, three hundred thirty-four".

Divisors: 1 2 3 6 11 22 33 66 436399 872798 1309197 2618394 4800389 9600778 14401167 28802334