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20301224013 = 327322241651
BaseRepresentation
bin10010111010000011…
…000001100001001101
31221101211100000220200
4102322003001201031
5313034103132023
613154245404113
71316040362010
oct227203014115
957354300820
1020301224013
11867856a094
123b26a09639
131bb6c138b5
14da82d7377
157dc41c743
hex4ba0c184d

20301224013 has 12 divisors (see below), whose sum is σ = 33513131808. Its totient is φ = 11600699400.

The previous prime is 20301223997. The next prime is 20301224023. The reversal of 20301224013 is 31042210302.

It is not a de Polignac number, because 20301224013 - 24 = 20301223997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301224023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161120763 + ... + 161120888.

It is an arithmetic number, because the mean of its divisors is an integer number (2792760984).

Almost surely, 220301224013 is an apocalyptic number.

It is an amenable number.

20301224013 is a deficient number, since it is larger than the sum of its proper divisors (13211907795).

20301224013 is a wasteful number, since it uses less digits than its factorization.

20301224013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322241664 (or 322241661 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20301224013 its reverse (31042210302), we get a palindrome (51343434315).

The spelling of 20301224013 in words is "twenty billion, three hundred one million, two hundred twenty-four thousand, thirteen".

Divisors: 1 3 7 9 21 63 322241651 966724953 2255691557 2900174859 6767074671 20301224013