Search a number
-
+
2268931 = 72911177
BaseRepresentation
bin1000101001111100000011
311021021101111
420221330003
51040101211
6120344151
725166650
oct10517403
94237344
102268931
11130a755
12915057
13615982
14430c27
152ec421
hex229f03

2268931 has 8 divisors (see below), whose sum is σ = 2682720. Its totient is φ = 1877568.

The previous prime is 2268919. The next prime is 2268941. The reversal of 2268931 is 1398622.

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

It is not a de Polignac number, because 2268931 - 211 = 2266883 is a prime.

It is a super-2 number, since 2×22689312 = 10296095765522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 217 + 221 + 64 + 85 + 92 + 38 + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2268893 and 2268902.

It is not an unprimeable number, because it can be changed into a prime (2268941) 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, 5386 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (335340).

22268931 is an apocalyptic number.

2268931 is a deficient number, since it is larger than the sum of its proper divisors (413789).

2268931 is a wasteful number, since it uses less digits than its factorization.

2268931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213.

The product of its digits is 5184, while the sum is 31.

The square root of 2268931 is about 1506.2971154457. The cubic root of 2268931 is about 131.4035493930.

The spelling of 2268931 in words is "two million, two hundred sixty-eight thousand, nine hundred thirty-one".

Divisors: 1 7 29 203 11177 78239 324133 2268931