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28659214 = 214329607
BaseRepresentation
bin110110101010…
…0111000001110
31222221001001101
41231110320032
524314043324
62502133314
7465412363
oct155247016
958831041
1028659214
11151a5101
12972123a
135c2591c
143b4046a
1527b1944
hex1b54e0e

28659214 has 4 divisors (see below), whose sum is σ = 42988824. Its totient is φ = 14329606.

The previous prime is 28659193. The next prime is 28659223. The reversal of 28659214 is 41295682.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7164802 + ... + 7164805.

It is an arithmetic number, because the mean of its divisors is an integer number (10747206).

Almost surely, 228659214 is an apocalyptic number.

28659214 is a deficient number, since it is larger than the sum of its proper divisors (14329610).

28659214 is a wasteful number, since it uses less digits than its factorization.

28659214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14329609.

The product of its digits is 34560, while the sum is 37.

The square root of 28659214 is about 5353.4301153559. The cubic root of 28659214 is about 306.0234863144.

The spelling of 28659214 in words is "twenty-eight million, six hundred fifty-nine thousand, two hundred fourteen".

Divisors: 1 2 14329607 28659214