Search a number
-
+
20241015 = 351349401
BaseRepresentation
bin100110100110…
…1101001110111
31102002100110020
41031031221313
520140203030
62001500223
7334021464
oct115155167
942070406
1020241015
1110475413
126941673
134269042
14298c66b
151b9c510
hex134da77

20241015 has 8 divisors (see below), whose sum is σ = 32385648. Its totient is φ = 10795200.

The previous prime is 20240977. The next prime is 20241017. The reversal of 20241015 is 51014202.

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

It is not a de Polignac number, because 20241015 - 210 = 20239991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 1349401 = 20241015 / (2 + 0 + 2 + 4 + 1 + 0 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 20240985 and 20241003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20241017) 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, 674686 + ... + 674715.

It is an arithmetic number, because the mean of its divisors is an integer number (4048206).

Almost surely, 220241015 is an apocalyptic number.

20241015 is a deficient number, since it is larger than the sum of its proper divisors (12144633).

20241015 is a wasteful number, since it uses less digits than its factorization.

20241015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349409.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20241015 is about 4499.0015559010. The cubic root of 20241015 is about 272.5277698041.

Adding to 20241015 its reverse (51014202), we get a palindrome (71255217).

The spelling of 20241015 in words is "twenty million, two hundred forty-one thousand, fifteen".

Divisors: 1 3 5 15 1349401 4048203 6747005 20241015