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7409398324441 = 27220212
BaseRepresentation
bin110101111010010001010…
…0011100001110011011001
3222020022221201010200210111
41223310202203201303121
51432343421432340231
623431455224244321
71363211540415061
oct153644243416331
928208851120714
107409398324441
1123a7343211a23
129b7ba86106a1
1341991b0bc999
141b888c69a3a1
15ccb072564b1
hex6bd228e1cd9

7409398324441 has 3 divisors (see below), whose sum is σ = 7409401046463. Its totient is φ = 7409395602420.

The previous prime is 7409398324421. The next prime is 7409398324499. The reversal of 7409398324441 is 1444238939047.

It is a happy number.

The square root of 7409398324441 is 2722021.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1254335040841 + 6155063283600 = 1119971^2 + 2480940^2 .

It is not a de Polignac number, because 7409398324441 - 211 = 7409398322393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7409398324421) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1361011 + ... + 4083031.

It is an arithmetic number, because the mean of its divisors is an integer number (2469800348821).

Almost surely, 27409398324441 is an apocalyptic number.

7409398324441 is the 2722021-st square number.

7409398324441 is the 1361011-st centered octagonal number.

It is an amenable number.

7409398324441 is a deficient number, since it is larger than the sum of its proper divisors (2722022).

7409398324441 is an frugal number, since it uses more digits than its factorization.

7409398324441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444042 (or 2722021 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 7409398324441 in words is "seven trillion, four hundred nine billion, three hundred ninety-eight million, three hundred twenty-four thousand, four hundred forty-one".

Divisors: 1 2722021 7409398324441