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28894474 = 273595749
BaseRepresentation
bin110111000111…
…0010100001010
32000100222202201
41232032110022
524344110344
62511150414
7500412310
oct156162412
960328681
1028894474
1115345934
12981540a
135ca8a2b
143ba20b0
15280b4d4
hex1b8e50a

28894474 has 16 divisors (see below), whose sum is σ = 49680000. Its totient is φ = 12346704.

The previous prime is 28894471. The next prime is 28894501. The reversal of 28894474 is 47449882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28894471) 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, 2152 + ... + 7900.

It is an arithmetic number, because the mean of its divisors is an integer number (3105000).

Almost surely, 228894474 is an apocalyptic number.

28894474 is a deficient number, since it is larger than the sum of its proper divisors (20785526).

28894474 is a wasteful number, since it uses less digits than its factorization.

28894474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117.

The product of its digits is 516096, while the sum is 46.

The square root of 28894474 is about 5375.3580345871. The cubic root of 28894474 is about 306.8585752703.

The spelling of 28894474 in words is "twenty-eight million, eight hundred ninety-four thousand, four hundred seventy-four".