Search a number
-
+
11283231 = 36161657
BaseRepresentation
bin101011000010…
…101100011111
3210020020200110
4223002230133
510342030411
61041501103
7164622501
oct53025437
923206613
1011283231
116407293
123941793
13245098b
1416d9d71
15ecd2a6
hexac2b1f

11283231 has 8 divisors (see below), whose sum is σ = 15291184. Its totient is φ = 7398720.

The previous prime is 11283229. The next prime is 11283263. The reversal of 11283231 is 13238211.

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

It is not a de Polignac number, because 11283231 - 21 = 11283229 is a prime.

It is a super-2 number, since 2×112832312 = 254622603598722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11283198 and 11283207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11283211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30646 + ... + 31011.

It is an arithmetic number, because the mean of its divisors is an integer number (1911398).

Almost surely, 211283231 is an apocalyptic number.

11283231 is a deficient number, since it is larger than the sum of its proper divisors (4007953).

11283231 is an equidigital number, since it uses as much as digits as its factorization.

11283231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61721.

The product of its digits is 288, while the sum is 21.

The square root of 11283231 is about 3359.0520984349. The cubic root of 11283231 is about 224.2906449868.

The spelling of 11283231 in words is "eleven million, two hundred eighty-three thousand, two hundred thirty-one".

Divisors: 1 3 61 183 61657 184971 3761077 11283231