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13122420051434 = 219333995906869
BaseRepresentation
bin1011111011110100110100…
…1011111000110111101010
31201110111021000102111020112
42332331031023320313222
53204444204013121214
643524205003054322
72523030542022341
oct276751513706752
951414230374215
1013122420051434
1141aa207022321
12157b267b113a2
1374259235c085
143351b292ab58
1517b526d24a3e
hexbef4d2f8dea

13122420051434 has 8 divisors (see below), whose sum is σ = 19785617798340. Its totient is φ = 6527214118656.

The previous prime is 13122420051421. The next prime is 13122420051439. The reversal of 13122420051434 is 43415002422131.

It can be written as a sum of positive squares in 2 ways, for example, as 13121021067025 + 1398984409 = 3622295^2 + 37403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13122420051434.

It is not an unprimeable number, because it can be changed into a prime (13122420051439) 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, 16997953049 + ... + 16997953820.

Almost surely, 213122420051434 is an apocalyptic number.

13122420051434 is a deficient number, since it is larger than the sum of its proper divisors (6663197746906).

13122420051434 is a wasteful number, since it uses less digits than its factorization.

13122420051434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33995907064.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 13122420051434 its reverse (43415002422131), we get a palindrome (56537422473565).

The spelling of 13122420051434 in words is "thirteen trillion, one hundred twenty-two billion, four hundred twenty million, fifty-one thousand, four hundred thirty-four".

Divisors: 1 2 193 386 33995906869 67991813738 6561210025717 13122420051434