Search a number
-
+
28883683 = 61473503
BaseRepresentation
bin110111000101…
…1101011100011
32000100102222001
41232023223203
524343234213
62511024431
7500335663
oct156135343
960312861
1028883683
1115338814
12980b117
135ca3b4a
143b9c1a3
1528081dd
hex1b8bae3

28883683 has 4 divisors (see below), whose sum is σ = 29357248. Its totient is φ = 28410120.

The previous prime is 28883671. The next prime is 28883689. The reversal of 28883683 is 38638882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38638882 = 219319441.

It is a cyclic number.

It is not a de Polignac number, because 28883683 - 213 = 28875491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28883689) 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, 236691 + ... + 236812.

It is an arithmetic number, because the mean of its divisors is an integer number (7339312).

Almost surely, 228883683 is an apocalyptic number.

28883683 is a deficient number, since it is larger than the sum of its proper divisors (473565).

28883683 is an equidigital number, since it uses as much as digits as its factorization.

28883683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473564.

The product of its digits is 442368, while the sum is 46.

The square root of 28883683 is about 5374.3541937613. The cubic root of 28883683 is about 306.8203704658.

The spelling of 28883683 in words is "twenty-eight million, eight hundred eighty-three thousand, six hundred eighty-three".

Divisors: 1 61 473503 28883683