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13531225323 = 371173802421
BaseRepresentation
bin11001001101000011…
…00001110011101011
31021221000101110121110
430212201201303223
5210202443202243
610114405041403
7656213342340
oct144641416353
937830343543
1013531225323
115814029950
1227576b6263
13137846a705
1492512c7c7
15542dd6e33
hex326861ceb

13531225323 has 32 divisors (see below), whose sum is σ = 22801623552. Its totient is φ = 6932908800.

The previous prime is 13531225303. The next prime is 13531225339. The reversal of 13531225323 is 32352213531.

It is a happy number.

13531225323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13531225323 - 25 = 13531225291 is a prime.

It is a super-3 number, since 3×135312253233 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13531225303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384348 + ... + 418073.

It is an arithmetic number, because the mean of its divisors is an integer number (712550736).

Almost surely, 213531225323 is an apocalyptic number.

13531225323 is a deficient number, since it is larger than the sum of its proper divisors (9270398229).

13531225323 is a wasteful number, since it uses less digits than its factorization.

13531225323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802515.

The product of its digits is 16200, while the sum is 30.

Adding to 13531225323 its reverse (32352213531), we get a palindrome (45883438854).

The spelling of 13531225323 in words is "thirteen billion, five hundred thirty-one million, two hundred twenty-five thousand, three hundred twenty-three".

Divisors: 1 3 7 11 21 33 73 77 219 231 511 803 1533 2409 5621 16863 802421 2407263 5616947 8826631 16850841 26479893 58576733 61786417 175730199 185359251 410037131 644344063 1230111393 1933032189 4510408441 13531225323