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13313332231 = 509190113759
BaseRepresentation
bin11000110011000100…
…10101010000000111
31021100211101100110221
430121202111100013
5204231203112411
610041022525211
7650626312453
oct143142252007
937324340427
1013313332231
115712035611
1226b6736807
131342289ca4
1490420d663
1552dbe6071
hex319895407

13313332231 has 8 divisors (see below), whose sum is σ = 13347475200. Its totient is φ = 13279221600.

The previous prime is 13313332181. The next prime is 13313332273. The reversal of 13313332231 is 13223331331.

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 13313332231 - 221 = 13311235079 is a prime.

It is a super-2 number, since 2×133133322312 (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 = 13313332196 and 13313332205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313332031) 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, 960730 + ... + 974488.

It is an arithmetic number, because the mean of its divisors is an integer number (1668434400).

Almost surely, 213313332231 is an apocalyptic number.

13313332231 is a deficient number, since it is larger than the sum of its proper divisors (34142969).

13313332231 is a wasteful number, since it uses less digits than its factorization.

13313332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16169.

The product of its digits is 2916, while the sum is 25.

Adding to 13313332231 its reverse (13223331331), we get a palindrome (26536663562).

The spelling of 13313332231 in words is "thirteen billion, three hundred thirteen million, three hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 509 1901 13759 967609 7003331 26155859 13313332231