Search a number
-
+
23836493 = 137257677
BaseRepresentation
bin101101011101…
…1011101001101
31122212000112002
41122323131031
522100231433
62210522045
7406415102
oct132733515
948760462
1023836493
111250078a
127b96325
134c27745
143246aa9
15215c9e8
hex16bb74d

23836493 has 8 divisors (see below), whose sum is σ = 24139512. Its totient is φ = 23535616.

The previous prime is 23836481. The next prime is 23836511. The reversal of 23836493 is 39463832.

It can be written as a sum of positive squares in 4 ways, for example, as 19333609 + 4502884 = 4397^2 + 2122^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23836493 - 214 = 23820109 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 (23836403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34871 + ... + 35547.

It is an arithmetic number, because the mean of its divisors is an integer number (3017439).

Almost surely, 223836493 is an apocalyptic number.

It is an amenable number.

23836493 is a deficient number, since it is larger than the sum of its proper divisors (303019).

23836493 is a wasteful number, since it uses less digits than its factorization.

23836493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 93312, while the sum is 38.

The square root of 23836493 is about 4882.2631022918. The cubic root of 23836493 is about 287.7933711095.

The spelling of 23836493 in words is "twenty-three million, eight hundred thirty-six thousand, four hundred ninety-three".

Divisors: 1 137 257 677 35209 92749 173989 23836493