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11968020013 = 179382317489
BaseRepresentation
bin10110010010101100…
…10111111000101101
31010220001221102001111
423021112113320231
5144002303120023
65255324112021
7602402330425
oct131126277055
933801842044
1011968020013
1150916a9634
1223a0095611
131189648561
14817695485
154a0a5500d
hex2c9597e2d

11968020013 has 8 divisors (see below), whose sum is σ = 12038716800. Its totient is φ = 11897366208.

The previous prime is 11968019983. The next prime is 11968020019. The reversal of 11968020013 is 31002086911.

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 11968020013 - 217 = 11967888941 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 (11968020019) 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 7 ways as a sum of consecutive naturals, for example, 675573 + ... + 693061.

It is an arithmetic number, because the mean of its divisors is an integer number (1504839600).

Almost surely, 211968020013 is an apocalyptic number.

It is an amenable number.

11968020013 is a deficient number, since it is larger than the sum of its proper divisors (70696787).

11968020013 is a wasteful number, since it uses less digits than its factorization.

11968020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21491.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 11968020013 in words is "eleven billion, nine hundred sixty-eight million, twenty thousand, thirteen".

Divisors: 1 179 3823 17489 684317 3130531 66860447 11968020013