Search a number
-
+
240214431 = 3791013563
BaseRepresentation
bin11100101000101…
…10000110011111
3121202000011020210
432110112012133
5442443330211
635500343503
75644534422
oct1624260637
9552004223
10240214431
1111365a726
1268544b93
133a9c7622
1423c8d9b9
151614e9a6
hexe51619f

240214431 has 8 divisors (see below), whose sum is σ = 324340480. Its totient is φ = 158115672.

The previous prime is 240214417. The next prime is 240214433. The reversal of 240214431 is 134412042.

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

It is not a de Polignac number, because 240214431 - 25 = 240214399 is a prime.

It is a super-2 number, since 2×2402144312 = 115405945721307522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240214398 and 240214407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240214433) 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, 506545 + ... + 507018.

It is an arithmetic number, because the mean of its divisors is an integer number (40542560).

Almost surely, 2240214431 is an apocalyptic number.

240214431 is a deficient number, since it is larger than the sum of its proper divisors (84126049).

240214431 is a wasteful number, since it uses less digits than its factorization.

240214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013645.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 240214431 is about 15498.8525704324. The cubic root of 240214431 is about 621.6315258124.

Adding to 240214431 its reverse (134412042), we get a palindrome (374626473).

The spelling of 240214431 in words is "two hundred forty million, two hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 3 79 237 1013563 3040689 80071477 240214431