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13021346513 = 71997904861
BaseRepresentation
bin11000010000010000…
…11111101011010001
31020121110221221101002
430020020133223101
5203131431042023
65552032351345
7640452422240
oct141010375321
936543857332
1013021346513
1155822353aa
1226349a5555
1312c6936c86
148b7524957
1551326bb28
hex30821fad1

13021346513 has 8 divisors (see below), whose sum is σ = 15664777920. Its totient is φ = 10573724880.

The previous prime is 13021346491. The next prime is 13021346539. The reversal of 13021346513 is 31564312031.

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 13021346513 - 212 = 13021342417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021346543) 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, 48952298 + ... + 48952563.

It is an arithmetic number, because the mean of its divisors is an integer number (1958097240).

Almost surely, 213021346513 is an apocalyptic number.

It is an amenable number.

13021346513 is a deficient number, since it is larger than the sum of its proper divisors (2643431407).

13021346513 is an equidigital number, since it uses as much as digits as its factorization.

13021346513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97904887.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 13021346513 its reverse (31564312031), we get a palindrome (44585658544).

The spelling of 13021346513 in words is "thirteen billion, twenty-one million, three hundred forty-six thousand, five hundred thirteen".

Divisors: 1 7 19 133 97904861 685334027 1860192359 13021346513