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13320230310991 = 47381837422391
BaseRepresentation
bin1100000111010101101110…
…0110001001010001001111
31202011101211202022211120001
43001311123212021101033
53221214312424422431
644155121311305131
72543232503340412
oct301653346112117
952141752284501
1013320230310991
11427609483107a
1215b167221b1a7
13758127acc636
143409b9c81b79
15181752e06e61
hexc1d5b98944f

13320230310991 has 8 divisors (see below), whose sum is σ = 13603997574144. Its totient is φ = 13036477969080.

The previous prime is 13320230310983. The next prime is 13320230310997. The reversal of 13320230310991 is 19901303202331.

13320230310991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13320230310991 - 23 = 13320230310983 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 13320230310991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320230310997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916595 + ... + 5505796.

It is an arithmetic number, because the mean of its divisors is an integer number (1700499696768).

Almost surely, 213320230310991 is an apocalyptic number.

13320230310991 is a deficient number, since it is larger than the sum of its proper divisors (283767263153).

13320230310991 is an equidigital number, since it uses as much as digits as its factorization.

13320230310991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460621.

The product of its (nonzero) digits is 26244, while the sum is 37.

The spelling of 13320230310991 in words is "thirteen trillion, three hundred twenty billion, two hundred thirty million, three hundred ten thousand, nine hundred ninety-one".

Divisors: 1 47 38183 1794601 7422391 348852377 283409155553 13320230310991