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15394742214 = 2323111556103
BaseRepresentation
bin11100101011001100…
…10001111111000110
31110201212220221012120
432111212101333012
5223012023222324
611023334430410
71053332102235
oct162546217706
943655827176
1015394742214
11658aa26755
122b97802406
1315b4569427
14a6081ab1c
156017da179
hex395991fc6

15394742214 has 16 divisors (see below), whose sum is σ = 32128157952. Its totient is φ = 4908468488.

The previous prime is 15394742213. The next prime is 15394742227. The reversal of 15394742214 is 41224749351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15394742213) 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, 55777914 + ... + 55778189.

It is an arithmetic number, because the mean of its divisors is an integer number (2008009872).

Almost surely, 215394742214 is an apocalyptic number.

15394742214 is an abundant number, since it is smaller than the sum of its proper divisors (16733415738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15394742214 is a wasteful number, since it uses less digits than its factorization.

15394742214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111556131.

The product of its digits is 241920, while the sum is 42.

The spelling of 15394742214 in words is "fifteen billion, three hundred ninety-four million, seven hundred forty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 23 46 69 138 111556103 223112206 334668309 669336618 2565790369 5131580738 7697371107 15394742214