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13200313331 = 22395895629
BaseRepresentation
bin11000100101100110…
…01100101111110011
31021001221201101200202
430102303030233303
5204013240011311
610021504305415
7645054545342
oct142263145763
937057641622
1013200313331
115664261867
12268491226b
131324a387ba
148d31cdb59
15523d1de3b
hex312cccbf3

13200313331 has 4 divisors (see below), whose sum is σ = 13206211200. Its totient is φ = 13194415464.

The previous prime is 13200313307. The next prime is 13200313363. The reversal of 13200313331 is 13331300231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13200313331 - 230 = 12126571507 is a prime.

It is a super-2 number, since 2×132003133312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13200313031) 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 3 ways as a sum of consecutive naturals, for example, 2945576 + ... + 2950053.

It is an arithmetic number, because the mean of its divisors is an integer number (3301552800).

Almost surely, 213200313331 is an apocalyptic number.

13200313331 is a deficient number, since it is larger than the sum of its proper divisors (5897869).

13200313331 is an equidigital number, since it uses as much as digits as its factorization.

13200313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897868.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13200313331 its reverse (13331300231), we get a palindrome (26531613562).

The spelling of 13200313331 in words is "thirteen billion, two hundred million, three hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 2239 5895629 13200313331