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13963207679 = 67289207511
BaseRepresentation
bin11010000000100010…
…11010001111111111
31100001010020102222222
431000101122033333
5212044040121204
610225315555555
71003010210201
oct150021321777
940033212888
1013963207679
115a15959663
1228582bbbbb
131416ac9385
1496665a771
1556acb6abe
hex34045a3ff

13963207679 has 4 divisors (see below), whose sum is σ = 13963482480. Its totient is φ = 13962932880.

The previous prime is 13963207639. The next prime is 13963207729. The reversal of 13963207679 is 97670236931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13963207679 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 13963207679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13963207619) 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, 36467 + ... + 171044.

It is an arithmetic number, because the mean of its divisors is an integer number (3490870620).

Almost surely, 213963207679 is an apocalyptic number.

13963207679 is a deficient number, since it is larger than the sum of its proper divisors (274801).

13963207679 is an equidigital number, since it uses as much as digits as its factorization.

13963207679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274800.

The product of its (nonzero) digits is 2571912, while the sum is 53.

The spelling of 13963207679 in words is "thirteen billion, nine hundred sixty-three million, two hundred seven thousand, six hundred seventy-nine".

Divisors: 1 67289 207511 13963207679