Search a number
-
+
228665103 = 3233313987
BaseRepresentation
bin11011010000100…
…10011100001111
3120221021101112220
431220102130033
5432014240403
634405030423
75444423052
oct1550223417
9527241486
10228665103
11108091527
12646b5413
13384b27c4
1422524a99
151511c953
hexda1270f

228665103 has 8 divisors (see below), whose sum is σ = 318142848. Its totient is φ = 145815384.

The previous prime is 228665093. The next prime is 228665137. The reversal of 228665103 is 301566822.

228665103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 228665103 - 25 = 228665071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228665153) 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, 1656925 + ... + 1657062.

It is an arithmetic number, because the mean of its divisors is an integer number (39767856).

Almost surely, 2228665103 is an apocalyptic number.

228665103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

228665103 is a deficient number, since it is larger than the sum of its proper divisors (89477745).

228665103 is a wasteful number, since it uses less digits than its factorization.

228665103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314013.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 228665103 is about 15121.6765935527. The cubic root of 228665103 is about 611.5049314463.

The spelling of 228665103 in words is "two hundred twenty-eight million, six hundred sixty-five thousand, one hundred three".

Divisors: 1 3 23 69 3313987 9941961 76221701 228665103