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5197189 = 17305717
BaseRepresentation
bin10011110100110110000101
3100210001012111
4103310312011
52312302224
6303221021
762114104
oct23646605
910701174
105197189
112a2a7a8
1218a7771
1310cc77a
1499403b
156c9d94
hex4f4d85

5197189 has 4 divisors (see below), whose sum is σ = 5502924. Its totient is φ = 4891456.

The previous prime is 5197187. The next prime is 5197193. The reversal of 5197189 is 9817915.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4656964 + 540225 = 2158^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 5197189 - 21 = 5197187 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 (5197183) 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, 152842 + ... + 152875.

It is an arithmetic number, because the mean of its divisors is an integer number (1375731).

Almost surely, 25197189 is an apocalyptic number.

It is an amenable number.

5197189 is a deficient number, since it is larger than the sum of its proper divisors (305735).

5197189 is a wasteful number, since it uses less digits than its factorization.

5197189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305734.

The product of its digits is 22680, while the sum is 40.

The square root of 5197189 is about 2279.7344143562. The cubic root of 5197189 is about 173.2165975166.

The spelling of 5197189 in words is "five million, one hundred ninety-seven thousand, one hundred eighty-nine".

Divisors: 1 17 305717 5197189