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13984197 = 34661399
BaseRepresentation
bin110101010110…
…000111000101
3222022110201020
4311112013011
512034443242
61215421353
7226602153
oct65260705
928273636
1013984197
117991597
124824859
132b88196
141c003d3
1513636ec
hexd561c5

13984197 has 4 divisors (see below), whose sum is σ = 18645600. Its totient is φ = 9322796.

The previous prime is 13984169. The next prime is 13984211. The reversal of 13984197 is 79148931.

It is a happy number.

13984197 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: 79148931 = 326382977.

It is a cyclic number.

It is not a de Polignac number, because 13984197 - 28 = 13983941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13984297) 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, 2330697 + ... + 2330702.

It is an arithmetic number, because the mean of its divisors is an integer number (4661400).

Almost surely, 213984197 is an apocalyptic number.

It is an amenable number.

13984197 is a deficient number, since it is larger than the sum of its proper divisors (4661403).

13984197 is an equidigital number, since it uses as much as digits as its factorization.

13984197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661402.

The product of its digits is 54432, while the sum is 42.

The square root of 13984197 is about 3739.5450258019. The cubic root of 13984197 is about 240.9235078031.

The spelling of 13984197 in words is "thirteen million, nine hundred eighty-four thousand, one hundred ninety-seven".

Divisors: 1 3 4661399 13984197