Search a number
-
+
20896117 = 111899647
BaseRepresentation
bin100111110110…
…1100101110101
31110022122002021
41033231211311
520322133432
62023513141
7342420424
oct117554565
943278067
1020896117
1110882620
126bb87b1
134438288
142abd2bb
151c7b697
hex13ed975

20896117 has 4 divisors (see below), whose sum is σ = 22795776. Its totient is φ = 18996460.

The previous prime is 20896093. The next prime is 20896171. The reversal of 20896117 is 71169802.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20896117 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 (20896517) 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, 949813 + ... + 949834.

It is an arithmetic number, because the mean of its divisors is an integer number (5698944).

Almost surely, 220896117 is an apocalyptic number.

It is an amenable number.

20896117 is a deficient number, since it is larger than the sum of its proper divisors (1899659).

20896117 is a wasteful number, since it uses less digits than its factorization.

20896117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899658.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 20896117 is about 4571.2270781487. The cubic root of 20896117 is about 275.4367363408.

The spelling of 20896117 in words is "twenty million, eight hundred ninety-six thousand, one hundred seventeen".

Divisors: 1 11 1899647 20896117