Search a number
-
+
11286231 = 311714817
BaseRepresentation
bin101011000011…
…011011010111
3210020101210120
4223003123113
510342124411
61041523023
7164634315
oct53033327
923211716
1011286231
116409570
123943473
132452158
1416db0b5
15ece106
hexac36d7

11286231 has 16 divisors (see below), whose sum is σ = 16651008. Its totient is φ = 6742400.

The previous prime is 11286229. The next prime is 11286269. The reversal of 11286231 is 13268211.

It is a cyclic number.

It is not a de Polignac number, because 11286231 - 21 = 11286229 is a prime.

It is a super-2 number, since 2×112862312 = 254758020370722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11286211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66 + ... + 4751.

It is an arithmetic number, because the mean of its divisors is an integer number (1040688).

Almost surely, 211286231 is an apocalyptic number.

11286231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11286231 is a deficient number, since it is larger than the sum of its proper divisors (5364777).

11286231 is a wasteful number, since it uses less digits than its factorization.

11286231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902.

The product of its digits is 576, while the sum is 24.

The square root of 11286231 is about 3359.4986233068. The cubic root of 11286231 is about 224.3105214539.

The spelling of 11286231 in words is "eleven million, two hundred eighty-six thousand, two hundred thirty-one".

Divisors: 1 3 11 33 71 213 781 2343 4817 14451 52987 158961 342007 1026021 3762077 11286231