Search a number
-
+
28050611 = 206313597
BaseRepresentation
bin110101100000…
…0010010110011
31221210010012112
41223000102303
524140104421
62441115535
7460266131
oct153002263
957703175
1028050611
1114919926
129488bab
135a718c4
143a22751
1526e145b
hex1ac04b3

28050611 has 4 divisors (see below), whose sum is σ = 28066272. Its totient is φ = 28034952.

The previous prime is 28050599. The next prime is 28050623. The reversal of 28050611 is 11605082.

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

It is an interprime number because it is at equal distance from previous prime (28050599) and next prime (28050623).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28050611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28050641) 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, 4736 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (7016568).

Almost surely, 228050611 is an apocalyptic number.

28050611 is a deficient number, since it is larger than the sum of its proper divisors (15661).

28050611 is a wasteful number, since it uses less digits than its factorization.

28050611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15660.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 28050611 is about 5296.2827530259. The cubic root of 28050611 is about 303.8417451642.

Adding to 28050611 its reverse (11605082), we get a palindrome (39655693).

The spelling of 28050611 in words is "twenty-eight million, fifty thousand, six hundred eleven".

Divisors: 1 2063 13597 28050611