Search a number
-
+
331111241 = 2916696841
BaseRepresentation
bin10011101111000…
…101101101001001
3212002001012020022
4103233011231021
51134231024431
652504510225
711130253616
oct2357055511
9762035208
10331111241
1115a9a385a
1292a7b375
13537a1816
1431d9150d
151e10707b
hex13bc5b49

331111241 has 8 divisors (see below), whose sum is σ = 342784200. Its totient is φ = 319455360.

The previous prime is 331111237. The next prime is 331111301. The reversal of 331111241 is 142111133.

It can be written as a sum of positive squares in 4 ways, for example, as 92717641 + 238393600 = 9629^2 + 15440^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331111241 - 22 = 331111237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331111211) 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, 44981 + ... + 51821.

It is an arithmetic number, because the mean of its divisors is an integer number (42848025).

Almost surely, 2331111241 is an apocalyptic number.

It is an amenable number.

331111241 is a deficient number, since it is larger than the sum of its proper divisors (11672959).

331111241 is a wasteful number, since it uses less digits than its factorization.

331111241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8539.

The product of its digits is 72, while the sum is 17.

The square root of 331111241 is about 18196.4623210117. The cubic root of 331111241 is about 691.8171252367.

Adding to 331111241 its reverse (142111133), we get a palindrome (473222374).

The spelling of 331111241 in words is "three hundred thirty-one million, one hundred eleven thousand, two hundred forty-one".

Divisors: 1 29 1669 6841 48401 198389 11417629 331111241