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20321245014 = 2372463149287
BaseRepresentation
bin10010111011001111…
…011001011101010110
31221110020000012120020
4102323033121131112
5313104214320024
613200242450010
71316402506200
oct227317313526
957406005506
1020321245014
1186888a4174
123b31663906
131bbb103745
14daac29770
157de074979
hex4bb3d9756

20321245014 has 48 divisors (see below), whose sum is σ = 47380428288. Its totient is φ = 5793491088.

The previous prime is 20321245013. The next prime is 20321245067. The reversal of 20321245014 is 41054212302.

20321245014 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321245013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61479 + ... + 210765.

It is an arithmetic number, because the mean of its divisors is an integer number (987092256).

Almost surely, 220321245014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20321245014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23690214144).

20321245014 is an abundant number, since it is smaller than the sum of its proper divisors (27059183274).

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

20321245014 is a wasteful number, since it uses less digits than its factorization.

20321245014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149769 (or 149762 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20321245014 its reverse (41054212302), we get a palindrome (61375457316).

The spelling of 20321245014 in words is "twenty billion, three hundred twenty-one million, two hundred forty-five thousand, fourteen".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 463 926 1389 2778 3241 6482 9723 19446 22687 45374 68061 136122 149287 298574 447861 895722 1045009 2090018 3135027 6270054 7315063 14630126 21945189 43890378 69119881 138239762 207359643 414719286 483839167 967678334 1451517501 2903035002 3386874169 6773748338 10160622507 20321245014