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13223253425 = 523591473343
BaseRepresentation
bin11000101000010101…
…01101010110110001
31021010112212212120212
430110022231112301
5204040123102200
610024044113505
7645453541154
oct142412552661
937115785525
1013223253425
115676200018
122690535895
13132970b215
148d6281c9b
15525d51035
hex3142ad5b1

13223253425 has 12 divisors (see below), whose sum is σ = 16442519040. Its totient is φ = 10549128720.

The previous prime is 13223253419. The next prime is 13223253499. The reversal of 13223253425 is 52435232231.

It is not a de Polignac number, because 13223253425 - 210 = 13223252401 is a prime.

It is a super-3 number, since 3×132232534253 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13223253391 and 13223253400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 727697 + ... + 745646.

It is an arithmetic number, because the mean of its divisors is an integer number (1370209920).

Almost surely, 213223253425 is an apocalyptic number.

It is an amenable number.

13223253425 is a deficient number, since it is larger than the sum of its proper divisors (3219265615).

13223253425 is a wasteful number, since it uses less digits than its factorization.

13223253425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473712 (or 1473707 counting only the distinct ones).

The product of its digits is 43200, while the sum is 32.

Adding to 13223253425 its reverse (52435232231), we get a palindrome (65658485656).

The spelling of 13223253425 in words is "thirteen billion, two hundred twenty-three million, two hundred fifty-three thousand, four hundred twenty-five".

Divisors: 1 5 25 359 1795 8975 1473343 7366715 36833575 528930137 2644650685 13223253425