Search a number
-
+
19714049 = 169711617
BaseRepresentation
bin100101100110…
…1000000000001
31101002120120222
41023031000001
520021322144
61542312425
7326365235
oct113150001
941076528
1019714049
1110145503
126728715
134113224
1428925c5
151ae62ee
hex12cd001

19714049 has 4 divisors (see below), whose sum is σ = 19727364. Its totient is φ = 19700736.

The previous prime is 19714043. The next prime is 19714061. The reversal of 19714049 is 94041791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94041791 = 97969503.

It can be written as a sum of positive squares in 2 ways, for example, as 13987600 + 5726449 = 3740^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 19714049 - 224 = 2936833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19714043) 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, 4112 + ... + 7505.

It is an arithmetic number, because the mean of its divisors is an integer number (4931841).

Almost surely, 219714049 is an apocalyptic number.

It is an amenable number.

19714049 is a deficient number, since it is larger than the sum of its proper divisors (13315).

19714049 is a wasteful number, since it uses less digits than its factorization.

19714049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13314.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 19714049 is about 4440.0505627752. The cubic root of 19714049 is about 270.1418961508.

The spelling of 19714049 in words is "nineteen million, seven hundred fourteen thousand, forty-nine".

Divisors: 1 1697 11617 19714049