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13023321331 = 61713007001
BaseRepresentation
bin11000010000100000…
…00001110011110011
31020121121200021022111
430020100001303303
5203132432240311
65552142550151
7640505255566
oct141020016363
936547607274
1013023321331
115583364089
122635598357
1312c7178ac7
148b78ba4dd
1551350bd21
hex308401cf3

13023321331 has 8 divisors (see below), whose sum is σ = 13423256928. Its totient is φ = 12629400000.

The previous prime is 13023321329. The next prime is 13023321341. The reversal of 13023321331 is 13312332031.

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 13023321331 - 21 = 13023321329 is a prime.

It is a super-2 number, since 2×130233213312 (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 (13023321341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499170 + ... + 1507831.

It is an arithmetic number, because the mean of its divisors is an integer number (1677907116).

Almost surely, 213023321331 is an apocalyptic number.

13023321331 is a deficient number, since it is larger than the sum of its proper divisors (399935597).

13023321331 is an equidigital number, since it uses as much as digits as its factorization.

13023321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007133.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13023321331 its reverse (13312332031), we get a palindrome (26335653362).

The spelling of 13023321331 in words is "thirteen billion, twenty-three million, three hundred twenty-one thousand, three hundred thirty-one".

Divisors: 1 61 71 4331 3007001 183427061 213497071 13023321331