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28659703 = 149192347
BaseRepresentation
bin110110101010…
…0111111110111
31222221001201111
41231110333313
524314102303
62502135451
7465413662
oct155247767
958831644
1028659703
11151a5506
129721587
135c25c07
143b406d9
1527b1b6d
hex1b54ff7

28659703 has 4 divisors (see below), whose sum is σ = 28852200. Its totient is φ = 28467208.

The previous prime is 28659677. The next prime is 28659713. The reversal of 28659703 is 30795682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28659703 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28659713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96025 + ... + 96322.

It is an arithmetic number, because the mean of its divisors is an integer number (7213050).

Almost surely, 228659703 is an apocalyptic number.

28659703 is a deficient number, since it is larger than the sum of its proper divisors (192497).

28659703 is a wasteful number, since it uses less digits than its factorization.

28659703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192496.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 28659703 is about 5353.4757868136. The cubic root of 28659703 is about 306.0252268208.

The spelling of 28659703 in words is "twenty-eight million, six hundred fifty-nine thousand, seven hundred three".

Divisors: 1 149 192347 28659703