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12212037 = 323114363
BaseRepresentation
bin101110100101…
…011101000101
3211222102202200
4232211131011
511111241122
61113425113
7205541415
oct56453505
924872680
1012212037
1169910a2
12410b199
1326b7676
14189c645
1511135ac
hexba5745

12212037 has 12 divisors (see below), whose sum is σ = 17700384. Its totient is φ = 8113320.

The previous prime is 12212029. The next prime is 12212051. The reversal of 12212037 is 73021221.

It is not a de Polignac number, because 12212037 - 23 = 12212029 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212077) 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 11 ways as a sum of consecutive naturals, for example, 618 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (1475032).

Almost surely, 212212037 is an apocalyptic number.

It is an amenable number.

12212037 is a deficient number, since it is larger than the sum of its proper divisors (5488347).

12212037 is a wasteful number, since it uses less digits than its factorization.

12212037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680 (or 4677 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12212037 is about 3494.5725060442. The cubic root of 12212037 is about 230.2834375853.

Adding to 12212037 its reverse (73021221), we get a palindrome (85233258).

The spelling of 12212037 in words is "twelve million, two hundred twelve thousand, thirty-seven".

Divisors: 1 3 9 311 933 2799 4363 13089 39267 1356893 4070679 12212037