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13122413515297 = 88314861170459
BaseRepresentation
bin1011111011110100110011…
…0010111101001000100001
31201110111020120010102100101
42332331030302331020201
53204444200324442142
643524204211022401
72523030432330502
oct276751462751041
951414216112311
1013122413515297
1141aa203368659
12157b26589aa01
13742590bb1038
143351b1b08ba9
1517b5264830b7
hexbef4ccbd221

13122413515297 has 4 divisors (see below), whose sum is σ = 13137274686640. Its totient is φ = 13107552343956.

The previous prime is 13122413515231. The next prime is 13122413515339. The reversal of 13122413515297 is 79251531422131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13122413515297 - 223 = 13122405126689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122413515597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7430584347 + ... + 7430586112.

It is an arithmetic number, because the mean of its divisors is an integer number (3284318671660).

Almost surely, 213122413515297 is an apocalyptic number.

It is an amenable number.

13122413515297 is a deficient number, since it is larger than the sum of its proper divisors (14861171343).

13122413515297 is an equidigital number, since it uses as much as digits as its factorization.

13122413515297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14861171342.

The product of its digits is 453600, while the sum is 46.

The spelling of 13122413515297 in words is "thirteen trillion, one hundred twenty-two billion, four hundred thirteen million, five hundred fifteen thousand, two hundred ninety-seven".

Divisors: 1 883 14861170459 13122413515297