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231304401241 = 881262547561
BaseRepresentation
bin1101011101101011010…
…0010001000101011001
3211010001000001000222121
43113122310101011121
512242202411314431
6254132040021241
722465636653634
oct3273264210531
9733030030877
10231304401241
118a106339191
12389b3461821
1318a72a00614
14b2a3874c1b
15603b85c611
hex35dad11159

231304401241 has 4 divisors (see below), whose sum is σ = 231566949684. Its totient is φ = 231041852800.

The previous prime is 231304401221. The next prime is 231304401247. The reversal of 231304401241 is 142104403132.

231304401241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152565235216 + 78739166025 = 390596^2 + 280605^2 .

It is a cyclic number.

It is not a de Polignac number, because 231304401241 - 29 = 231304400729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231304401247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131272900 + ... + 131274661.

It is an arithmetic number, because the mean of its divisors is an integer number (57891737421).

Almost surely, 2231304401241 is an apocalyptic number.

It is an amenable number.

231304401241 is a deficient number, since it is larger than the sum of its proper divisors (262548443).

231304401241 is an equidigital number, since it uses as much as digits as its factorization.

231304401241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262548442.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231304401241 its reverse (142104403132), we get a palindrome (373408804373).

The spelling of 231304401241 in words is "two hundred thirty-one billion, three hundred four million, four hundred one thousand, two hundred forty-one".

Divisors: 1 881 262547561 231304401241