Search a number
-
+
28082803 = 712313259
BaseRepresentation
bin110101100100…
…0001001110011
31221211202100211
41223020021303
524142122203
62441524551
7460462030
oct153101163
957752324
1028082803
1114941031
1294a3757
135a83458
143a30387
1526eac6d
hex1ac8273

28082803 has 8 divisors (see below), whose sum is σ = 32130560. Its totient is φ = 24044040.

The previous prime is 28082783. The next prime is 28082809. The reversal of 28082803 is 30828082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28082803 - 213 = 28074611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28082809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6988 + ... + 10246.

It is an arithmetic number, because the mean of its divisors is an integer number (4016320).

Almost surely, 228082803 is an apocalyptic number.

28082803 is a deficient number, since it is larger than the sum of its proper divisors (4047757).

28082803 is a wasteful number, since it uses less digits than its factorization.

28082803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28082803 is about 5299.3209942407. The cubic root of 28082803 is about 303.9579343630.

The spelling of 28082803 in words is "twenty-eight million, eighty-two thousand, eight hundred three".

Divisors: 1 7 1231 3259 8617 22813 4011829 28082803