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231340210441 = 1713829984037
BaseRepresentation
bin1101011101110011110…
…0110111100100001001
3211010010111102022222021
43113130330313210021
512242241043213231
6254135355324441
722466553225634
oct3273474674411
9733114368867
10231340210441
118a12457716a
1238a03450721
1318a7a25a7b2
14b2a8516c1b
15603ea82811
hex35dcf37909

231340210441 has 8 divisors (see below), whose sum is σ = 244966419720. Its totient is φ = 217715996928.

The previous prime is 231340210427. The next prime is 231340210501. The reversal of 231340210441 is 144012043132.

It can be written as a sum of positive squares in 4 ways, for example, as 51156940041 + 180183270400 = 226179^2 + 424480^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231340210441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231340210411) 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, 256926 + ... + 727111.

It is an arithmetic number, because the mean of its divisors is an integer number (30620802465).

Almost surely, 2231340210441 is an apocalyptic number.

It is an amenable number.

231340210441 is a deficient number, since it is larger than the sum of its proper divisors (13626209279).

231340210441 is a wasteful number, since it uses less digits than its factorization.

231340210441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997883.

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

Adding to 231340210441 its reverse (144012043132), we get a palindrome (375352253573).

The spelling of 231340210441 in words is "two hundred thirty-one billion, three hundred forty million, two hundred ten thousand, four hundred forty-one".

Divisors: 1 17 13829 235093 984037 16728629 13608247673 231340210441