Search a number
-
+
11212033031 = 23509995603
BaseRepresentation
bin10100111000100101…
…00000110000000111
31001221101102021212122
422130102200300013
5140430240024111
65052320440155
7544562464643
oct123422406007
931841367778
1011212033031
11483399a401
12220aa7905b
131098b35994
14785105c23
154594c3cdb
hex29c4a0c07

11212033031 has 8 divisors (see below), whose sum is σ = 11701929600. Its totient is φ = 10722337912.

The previous prime is 11212033013. The next prime is 11212033087. The reversal of 11212033031 is 13033021211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11212033031 is a prime.

It is a super-2 number, since 2×112120330312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212033631) 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, 69476 + ... + 165078.

It is an arithmetic number, because the mean of its divisors is an integer number (1462741200).

Almost surely, 211212033031 is an apocalyptic number.

11212033031 is a deficient number, since it is larger than the sum of its proper divisors (489896569).

11212033031 is an equidigital number, since it uses as much as digits as its factorization.

11212033031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100725.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11212033031 its reverse (13033021211), we get a palindrome (24245054242).

The spelling of 11212033031 in words is "eleven billion, two hundred twelve million, thirty-three thousand, thirty-one".

Divisors: 1 23 5099 95603 117277 2198869 487479697 11212033031