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13420225351 = 131032325027
BaseRepresentation
bin11000111111110100…
…00110001101000111
31021122021112002021101
430133322012031013
5204441034202401
610055402000531
7653365014301
oct143772061507
937567462241
1013420225351
115767404a35
1227264a6147
13135b475160
149144b6971
155382ad101
hex31fe86347

13420225351 has 4 divisors (see below), whose sum is σ = 14452550392. Its totient is φ = 12387900312.

The previous prime is 13420225327. The next prime is 13420225367. The reversal of 13420225351 is 15352202431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13420225351 - 225 = 13386670919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420225751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516162501 + ... + 516162526.

It is an arithmetic number, because the mean of its divisors is an integer number (3613137598).

Almost surely, 213420225351 is an apocalyptic number.

13420225351 is a deficient number, since it is larger than the sum of its proper divisors (1032325041).

13420225351 is a wasteful number, since it uses less digits than its factorization.

13420225351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032325040.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13420225351 its reverse (15352202431), we get a palindrome (28772427782).

The spelling of 13420225351 in words is "thirteen billion, four hundred twenty million, two hundred twenty-five thousand, three hundred fifty-one".

Divisors: 1 13 1032325027 13420225351