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20503201014 = 2321139066723
BaseRepresentation
bin10011000110000101…
…100000010011110110
31221220220101112021100
4103012011200103312
5313442304413024
613230302430530
71324042222152
oct230605402366
957826345240
1020503201014
11877158242a
123b82592446
131c19a10a0a
14dc7072062
158000177c9
hex4c61604f6

20503201014 has 12 divisors (see below), whose sum is σ = 44423602236. Its totient is φ = 6834400332.

The previous prime is 20503201013. The next prime is 20503201021. The reversal of 20503201014 is 41010230502.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1139066723 = 20503201014 / (2 + 0 + 5 + 0 + 3 + 2 + 0 + 1 + 0 + 1 + 4).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20503201013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569533344 + ... + 569533379.

It is an arithmetic number, because the mean of its divisors is an integer number (3701966853).

Almost surely, 220503201014 is an apocalyptic number.

20503201014 is an abundant number, since it is smaller than the sum of its proper divisors (23920401222).

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

20503201014 is a wasteful number, since it uses less digits than its factorization.

20503201014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139066731 (or 1139066728 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20503201014 its reverse (41010230502), we get a palindrome (61513431516).

The spelling of 20503201014 in words is "twenty billion, five hundred three million, two hundred one thousand, fourteen".

Divisors: 1 2 3 6 9 18 1139066723 2278133446 3417200169 6834400338 10251600507 20503201014