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21304141331 = 119719966393
BaseRepresentation
bin10011110101110100…
…110110011000010011
32000222201111111211112
4103311310312120103
5322112330010311
613441553403535
71352636133134
oct236564663023
960881444745
1021304141331
1190426a5780
1241668695ab
1320169328b5
1410615a3c8b
1584a4c828b
hex4f5d36613

21304141331 has 8 divisors (see below), whose sum is σ = 23480479344. Its totient is φ = 19167736320.

The previous prime is 21304141301. The next prime is 21304141333. The reversal of 21304141331 is 13314140312.

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 21304141331 - 218 = 21303879187 is a prime.

It is a super-2 number, since 2×213041413312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21304141297 and 21304141306.

It is not an unprimeable number, because it can be changed into a prime (21304141333) 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 7 ways as a sum of consecutive naturals, for example, 9982130 + ... + 9984263.

It is an arithmetic number, because the mean of its divisors is an integer number (2935059918).

Almost surely, 221304141331 is an apocalyptic number.

21304141331 is a deficient number, since it is larger than the sum of its proper divisors (2176338013).

21304141331 is a wasteful number, since it uses less digits than its factorization.

21304141331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19966501.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21304141331 its reverse (13314140312), we get a palindrome (34618281643).

The spelling of 21304141331 in words is "twenty-one billion, three hundred four million, one hundred forty-one thousand, three hundred thirty-one".

Divisors: 1 11 97 1067 19966393 219630323 1936740121 21304141331