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240542241 = 3197340639
BaseRepresentation
bin11100101011001…
…10001000100001
3121202121210220220
432111212020201
5443034322431
635511353253
75650401222
oct1625461041
9552553826
10240542241
11113863a45
1268682829
133aab08b4
1423d37249
15161b6b96
hexe566221

240542241 has 8 divisors (see below), whose sum is σ = 320893440. Its totient is φ = 160276272.

The previous prime is 240542219. The next prime is 240542243. The reversal of 240542241 is 142245042.

It is a happy number.

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

It is not a de Polignac number, because 240542241 - 25 = 240542209 is a prime.

It is a super-3 number, since 3×2405422413 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (240542243) 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, 14401 + ... + 26238.

It is an arithmetic number, because the mean of its divisors is an integer number (40111680).

Almost surely, 2240542241 is an apocalyptic number.

It is an amenable number.

240542241 is a deficient number, since it is larger than the sum of its proper divisors (80351199).

240542241 is a wasteful number, since it uses less digits than its factorization.

240542241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42615.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 240542241 is about 15509.4242639758. The cubic root of 240542241 is about 621.9141682896.

Adding to 240542241 its reverse (142245042), we get a palindrome (382787283).

The spelling of 240542241 in words is "two hundred forty million, five hundred forty-two thousand, two hundred forty-one".

Divisors: 1 3 1973 5919 40639 121917 80180747 240542241