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28853894 = 219759313
BaseRepresentation
bin110111000010…
…0011010000110
32000021221002202
41232010122012
524341311034
62510234502
7500153066
oct156043206
960257082
1028853894
11153183a3
1297b5a32
135c93414
143b913a6
1527ee47e
hex1b84686

28853894 has 8 divisors (see below), whose sum is σ = 45558840. Its totient is φ = 13667616.

The previous prime is 28853893. The next prime is 28853897. The reversal of 28853894 is 49835882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28853893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379619 + ... + 379694.

It is an arithmetic number, because the mean of its divisors is an integer number (5694855).

Almost surely, 228853894 is an apocalyptic number.

28853894 is a deficient number, since it is larger than the sum of its proper divisors (16704946).

28853894 is a wasteful number, since it uses less digits than its factorization.

28853894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759334.

The product of its digits is 552960, while the sum is 47.

The square root of 28853894 is about 5371.5820760740. The cubic root of 28853894 is about 306.7148551139.

The spelling of 28853894 in words is "twenty-eight million, eight hundred fifty-three thousand, eight hundred ninety-four".

Divisors: 1 2 19 38 759313 1518626 14426947 28853894