Search a number
-
+
26028647 = 47211783
BaseRepresentation
bin110001101001…
…0101001100111
31210222101120222
41203102221213
523130404042
62325514555
7434145161
oct143225147
953871528
1026028647
1113768787
128872a5b
135514488
143657931
1524422d2
hex18d2a67

26028647 has 6 divisors (see below), whose sum is σ = 26596488. Its totient is φ = 25472684.

The previous prime is 26028641. The next prime is 26028659. The reversal of 26028647 is 74682062.

It is not a de Polignac number, because 26028647 - 210 = 26027623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26028641) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 3683 + ... + 8100.

It is an arithmetic number, because the mean of its divisors is an integer number (4432748).

Almost surely, 226028647 is an apocalyptic number.

26028647 is a deficient number, since it is larger than the sum of its proper divisors (567841).

26028647 is an equidigital number, since it uses as much as digits as its factorization.

26028647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877 (or 11830 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 26028647 is about 5101.8278097168. The cubic root of 26028647 is about 296.3583702703.

The spelling of 26028647 in words is "twenty-six million, twenty-eight thousand, six hundred forty-seven".

Divisors: 1 47 2209 11783 553801 26028647