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13321030331 = 722744918671
BaseRepresentation
bin11000110011111111…
…01100101010111011
31021101100212110021202
430121333230222323
5204240140432311
610041455524415
7651051614060
oct143177545273
937340773252
1013321030331
115716413284
1226b922970b
131343a53b8b
14905254c67
1552e716e3b
hex319fecabb

13321030331 has 16 divisors (see below), whose sum is σ = 15325977600. Its totient is φ = 11341800960.

The previous prime is 13321030301. The next prime is 13321030351. The reversal of 13321030331 is 13303012331.

It is not a de Polignac number, because 13321030331 - 218 = 13320768187 is a prime.

It is a super-2 number, since 2×133210303312 (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 (13321030301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704126 + ... + 722796.

It is an arithmetic number, because the mean of its divisors is an integer number (957873600).

Almost surely, 213321030331 is an apocalyptic number.

13321030331 is a deficient number, since it is larger than the sum of its proper divisors (2004947269).

13321030331 is a wasteful number, since it uses less digits than its factorization.

13321030331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19354.

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

Adding to 13321030331 its reverse (13303012331), we get a palindrome (26624042662).

The spelling of 13321030331 in words is "thirteen billion, three hundred twenty-one million, thirty thousand, three hundred thirty-one".

Divisors: 1 7 227 449 1589 3143 18671 101923 130697 713461 4238317 8383279 29668219 58682953 1903004333 13321030331