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13122440013 = 34493973547
BaseRepresentation
bin11000011100010100…
…01000101101001101
31020212112012000120210
430032022020231031
5203333321040023
610010043233033
7643120620414
oct141612105515
936775160523
1013122440013
115624303451
122662818779
131311871407
148c6b1c47b
1551c08a593
hex30e288b4d

13122440013 has 8 divisors (see below), whose sum is σ = 17500498848. Its totient is φ = 8746337264.

The previous prime is 13122440011. The next prime is 13122440113. The reversal of 13122440013 is 31004422131.

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 13122440013 - 21 = 13122440011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122440011) 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, 473295 + ... + 500252.

It is an arithmetic number, because the mean of its divisors is an integer number (2187562356).

Almost surely, 213122440013 is an apocalyptic number.

It is an amenable number.

13122440013 is a deficient number, since it is larger than the sum of its proper divisors (4378058835).

13122440013 is an equidigital number, since it uses as much as digits as its factorization.

13122440013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978043.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13122440013 its reverse (31004422131), we get a palindrome (44126862144).

The spelling of 13122440013 in words is "thirteen billion, one hundred twenty-two million, four hundred forty thousand, thirteen".

Divisors: 1 3 4493 13479 973547 2920641 4374146671 13122440013