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56274019513 = 67839910739
BaseRepresentation
bin110100011010001100…
…010110010010111001
312101020211111101101221
4310122030112102321
51410222122111023
641504003312041
74031344162555
oct643214262271
9171224441357
1056274019513
1121958242848
12aaa607b621
1353ca83acca
142a1baac865
1516e55a885d
hexd1a3164b9

56274019513 has 4 divisors (see below), whose sum is σ = 57113930320. Its totient is φ = 55434108708.

The previous prime is 56274019493. The next prime is 56274019517. The reversal of 56274019513 is 31591047265.

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 56274019513 - 29 = 56274019001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56274019513.

It is not an unprimeable number, because it can be changed into a prime (56274019517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419955303 + ... + 419955436.

It is an arithmetic number, because the mean of its divisors is an integer number (14278482580).

Almost surely, 256274019513 is an apocalyptic number.

It is an amenable number.

56274019513 is a deficient number, since it is larger than the sum of its proper divisors (839910807).

56274019513 is an equidigital number, since it uses as much as digits as its factorization.

56274019513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839910806.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 56274019513 in words is "fifty-six billion, two hundred seventy-four million, nineteen thousand, five hundred thirteen".

Divisors: 1 67 839910739 56274019513