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10023143221 = 713359306809
BaseRepresentation
bin10010101010110110…
…10000011100110101
3221212112022102122201
421111123100130311
5131011411040341
64334330424501
7503245211620
oct112533203465
927775272581
1010023143221
114283891943
121b38892131
13c397314a0
146b1268db7
153d9e30331
hex2556d0735

10023143221 has 16 divisors (see below), whose sum is σ = 12370579200. Its totient is φ = 7908283008.

The previous prime is 10023143213. The next prime is 10023143227. The reversal of 10023143221 is 12234132001.

It is a happy number.

10023143221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10023143221 - 23 = 10023143213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023143227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120736 + ... + 186073.

It is an arithmetic number, because the mean of its divisors is an integer number (773161200).

Almost surely, 210023143221 is an apocalyptic number.

It is an amenable number.

10023143221 is a deficient number, since it is larger than the sum of its proper divisors (2347435979).

10023143221 is a wasteful number, since it uses less digits than its factorization.

10023143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307188.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10023143221 its reverse (12234132001), we get a palindrome (22257275222).

The spelling of 10023143221 in words is "ten billion, twenty-three million, one hundred forty-three thousand, two hundred twenty-one".

Divisors: 1 7 13 91 359 2513 4667 32669 306809 2147663 3988517 27919619 110144431 771011017 1431877603 10023143221