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20103321041 = 111771798633
BaseRepresentation
bin10010101110010000…
…000101010111010001
31220220000221112001222
4102232100011113101
5312132422233131
613122455534425
71311115260266
oct225620052721
956800845058
1020103321041
118586889711
123a9068a415
131b84c11c4b
14d89cdd26d
157c9d7987b
hex4ae4055d1

20103321041 has 4 divisors (see below), whose sum is σ = 20105130852. Its totient is φ = 20101511232.

The previous prime is 20103321001. The next prime is 20103321059. The reversal of 20103321041 is 14012330102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7292476816 + 12810844225 = 85396^2 + 113185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20103321041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103321001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888140 + ... + 910493.

It is an arithmetic number, because the mean of its divisors is an integer number (5026282713).

Almost surely, 220103321041 is an apocalyptic number.

It is an amenable number.

20103321041 is a deficient number, since it is larger than the sum of its proper divisors (1809811).

20103321041 is a wasteful number, since it uses less digits than its factorization.

20103321041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809810.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20103321041 its reverse (14012330102), we get a palindrome (34115651143).

The spelling of 20103321041 in words is "twenty billion, one hundred three million, three hundred twenty-one thousand, forty-one".

Divisors: 1 11177 1798633 20103321041