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13964744231 = 1713135917467
BaseRepresentation
bin11010000000101110…
…10001011000100111
31100001020010111202022
431000113101120213
5212044433303411
610225412533355
71003026240014
oct150027213047
940036114668
1013964744231
115a16809039
12285892125b
131417216889
1496693a70b
1556aebbedb
hex3405d1627

13964744231 has 16 divisors (see below), whose sum is σ = 14941428480. Its totient is φ = 13005882240.

The previous prime is 13964744221. The next prime is 13964744263. The reversal of 13964744231 is 13244746931.

It is a cyclic number.

It is not a de Polignac number, because 13964744231 - 218 = 13964482087 is a prime.

It is a super-2 number, since 2×139647442312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13964744221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790760 + ... + 808226.

It is an arithmetic number, because the mean of its divisors is an integer number (933839280).

Almost surely, 213964744231 is an apocalyptic number.

13964744231 is a deficient number, since it is larger than the sum of its proper divisors (976684249).

13964744231 is a wasteful number, since it uses less digits than its factorization.

13964744231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17974.

The product of its digits is 435456, while the sum is 44.

The spelling of 13964744231 in words is "thirteen billion, nine hundred sixty-four million, seven hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 17 131 359 2227 6103 17467 47029 296939 799493 2288177 6270653 38899009 106601101 821455543 13964744231