Search a number
-
+
24391069 = 137178037
BaseRepresentation
bin101110100001…
…0110110011101
31200220012020221
41131002312131
522221003234
62230441341
7414214663
oct135026635
950805227
1024391069
111284a40a
128203251
13508ccb1
14334cc33
15221beb4
hex1742d9d

24391069 has 4 divisors (see below), whose sum is σ = 24569244. Its totient is φ = 24212896.

The previous prime is 24391067. The next prime is 24391091. The reversal of 24391069 is 96019342.

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 13912900 + 10478169 = 3730^2 + 3237^2 .

It is a cyclic number.

It is not a de Polignac number, because 24391069 - 21 = 24391067 is a prime.

It is a super-2 number, since 2×243910692 = 1189848493925522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24391061) 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, 88882 + ... + 89155.

It is an arithmetic number, because the mean of its divisors is an integer number (6142311).

Almost surely, 224391069 is an apocalyptic number.

It is an amenable number.

24391069 is a deficient number, since it is larger than the sum of its proper divisors (178175).

24391069 is a wasteful number, since it uses less digits than its factorization.

24391069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178174.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 24391069 is about 4938.7315173028. The cubic root of 24391069 is about 290.0082003230.

The spelling of 24391069 in words is "twenty-four million, three hundred ninety-one thousand, sixty-nine".

Divisors: 1 137 178037 24391069