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12917101 = 71181931
BaseRepresentation
bin110001010001…
…100101101101
3220022020221011
4301101211231
511301321401
61140505221
7214536121
oct61214555
926266834
1012917101
11732289a
1243ab211
1328a3572
141a03581
151202451
hexc5196d

12917101 has 4 divisors (see below), whose sum is σ = 13099104. Its totient is φ = 12735100.

The previous prime is 12917089. The next prime is 12917117. The reversal of 12917101 is 10171921.

12917101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 10171921 = 11390017.

It is a cyclic number.

It is not a de Polignac number, because 12917101 - 27 = 12916973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12917141) 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, 90895 + ... + 91036.

It is an arithmetic number, because the mean of its divisors is an integer number (3274776).

Almost surely, 212917101 is an apocalyptic number.

It is an amenable number.

12917101 is a deficient number, since it is larger than the sum of its proper divisors (182003).

12917101 is an equidigital number, since it uses as much as digits as its factorization.

12917101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182002.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 12917101 is about 3594.0368668115. The cubic root of 12917101 is about 234.6325992840.

The spelling of 12917101 in words is "twelve million, nine hundred seventeen thousand, one hundred one".

Divisors: 1 71 181931 12917101