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12201493 is a prime number
BaseRepresentation
bin101110100010…
…111000010101
3211221220022011
4232202320111
511110421433
61113304221
7205465603
oct56427025
924856264
1012201493
116984187
124105071
1326b2925
141898873
1511103cd
hexba2e15

12201493 has 2 divisors, whose sum is σ = 12201494. Its totient is φ = 12201492.

The previous prime is 12201491. The next prime is 12201499. The reversal of 12201493 is 39410221.

12201493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 1397124 = 3287^2 + 1182^2 .

It is an emirp because it is prime and its reverse (39410221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12201493 - 21 = 12201491 is a prime.

Together with 12201491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100746 + 6100747.

It is an arithmetic number, because the mean of its divisors is an integer number (6100747).

Almost surely, 212201493 is an apocalyptic number.

It is an amenable number.

12201493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201493 is an equidigital number, since it uses as much as digits as its factorization.

12201493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12201493 is about 3493.0635551046. The cubic root of 12201493 is about 230.2171421284.

The spelling of 12201493 in words is "twelve million, two hundred one thousand, four hundred ninety-three".