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242430241 = 1304318587
BaseRepresentation
bin11100111001100…
…11000100100001
3121220011201202211
432130303010201
5444030231431
640020042121
76002423464
oct1634630441
9556151684
10242430241
11114933479
1269233341
133b2c2061
14242a92db
151643b2b1
hexe733121

242430241 has 4 divisors (see below), whose sum is σ = 242461872. Its totient is φ = 242398612.

The previous prime is 242430239. The next prime is 242430269. The reversal of 242430241 is 142034242.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242430241 - 21 = 242430239 is a prime.

It is a super-3 number, since 3×2424302413 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242430211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3750 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (60615468).

Almost surely, 2242430241 is an apocalyptic number.

It is an amenable number.

242430241 is a deficient number, since it is larger than the sum of its proper divisors (31631).

242430241 is a wasteful number, since it uses less digits than its factorization.

242430241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31630.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242430241 is about 15570.1715147907. The cubic root of 242430241 is about 623.5370506385.

Adding to 242430241 its reverse (142034242), we get a palindrome (384464483).

The spelling of 242430241 in words is "two hundred forty-two million, four hundred thirty thousand, two hundred forty-one".

Divisors: 1 13043 18587 242430241