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28427795 = 5113491481
BaseRepresentation
bin110110001110…
…0011000010011
31222111021121022
41230130120103
524234142140
62453150055
7463426604
oct154343023
958437538
1028427795
1115057250
12962b32b
135b744a6
143abddab
1527680b5
hex1b1c613

28427795 has 16 divisors (see below), whose sum is σ = 37346400. Its totient is φ = 20601600.

The previous prime is 28427783. The next prime is 28427797. The reversal of 28427795 is 59772482.

It is not a de Polignac number, because 28427795 - 216 = 28362259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28427797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18455 + ... + 19935.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 228427795 is an apocalyptic number.

28427795 is a deficient number, since it is larger than the sum of its proper divisors (8918605).

28427795 is a wasteful number, since it uses less digits than its factorization.

28427795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its digits is 282240, while the sum is 44.

The square root of 28427795 is about 5331.7722194407. The cubic root of 28427795 is about 305.1975607976.

The spelling of 28427795 in words is "twenty-eight million, four hundred twenty-seven thousand, seven hundred ninety-five".

Divisors: 1 5 11 55 349 1481 1745 3839 7405 16291 19195 81455 516869 2584345 5685559 28427795