Search a number
-
+
12231011 = 132932443
BaseRepresentation
bin101110101010…
…000101100011
3212000101210102
4232222011203
511112343021
61114053015
7205650632
oct56520543
925011712
1012231011
1169a4381
12411a16b
1326c31b0
1418a5519
15111900b
hexbaa163

12231011 has 8 divisors (see below), whose sum is σ = 13626480. Its totient is φ = 10900512.

The previous prime is 12231001. The next prime is 12231059. The reversal of 12231011 is 11013221.

12231011 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 a cyclic number.

It is not a de Polignac number, because 12231011 - 26 = 12230947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12230983 and 12231001.

It is not an unprimeable number, because it can be changed into a prime (12231001) 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, 15845 + ... + 16598.

It is an arithmetic number, because the mean of its divisors is an integer number (1703310).

Almost surely, 212231011 is an apocalyptic number.

12231011 is a deficient number, since it is larger than the sum of its proper divisors (1395469).

12231011 is a wasteful number, since it uses less digits than its factorization.

12231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32485.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12231011 is about 3497.2862336389. The cubic root of 12231011 is about 230.4026406570.

Adding to 12231011 its reverse (11013221), we get a palindrome (23244232).

The spelling of 12231011 in words is "twelve million, two hundred thirty-one thousand, eleven".

Divisors: 1 13 29 377 32443 421759 940847 12231011