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12240033017 = 91991330583
BaseRepresentation
bin10110110011001000…
…00001010011111001
31011121000210002202012
423121210001103321
5200031422024032
65342322215305
7612214364312
oct133144012371
934530702665
1012240033017
1152111a7a73
1224571b4535
131200ac76b4
14841861609
154b98866b2
hex2d99014f9

12240033017 has 4 divisors (see below), whose sum is σ = 12241372800. Its totient is φ = 12238693236.

The previous prime is 12240032999. The next prime is 12240033041. The reversal of 12240033017 is 71033004221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71033004221 = 174178412013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12240033017 is a prime.

It is a super-3 number, since 3×122400330173 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12240032983 and 12240033001.

It is not an unprimeable number, because it can be changed into a prime (12240033097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656093 + ... + 674490.

It is an arithmetic number, because the mean of its divisors is an integer number (3060343200).

Almost surely, 212240033017 is an apocalyptic number.

It is an amenable number.

12240033017 is a deficient number, since it is larger than the sum of its proper divisors (1339783).

12240033017 is an equidigital number, since it uses as much as digits as its factorization.

12240033017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339782.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 12240033017 its reverse (71033004221), we get a palindrome (83273037238).

The spelling of 12240033017 in words is "twelve billion, two hundred forty million, thirty-three thousand, seventeen".

Divisors: 1 9199 1330583 12240033017