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2050020817 = 13295437721
BaseRepresentation
bin111101000110000…
…1101010111010001
312021212110211212221
41322030031113101
513144301131232
6535231021041
7101541614035
oct17214152721
95255424787
102050020817
11962201a89
1249266a781
1326893c090
1415639a1c5
15bee93897
hex7a30d5d1

2050020817 has 8 divisors (see below), whose sum is σ = 2283843240. Its totient is φ = 1827073920.

The previous prime is 2050020799. The next prime is 2050020851. The reversal of 2050020817 is 7180200502.

It can be written as a sum of positive squares in 4 ways, for example, as 33651601 + 2016369216 = 5801^2 + 44904^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2050020817 - 211 = 2050018769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2050020791 and 2050020800.

It is not an unprimeable number, because it can be changed into a prime (2050020857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718484 + ... + 2719237.

It is an arithmetic number, because the mean of its divisors is an integer number (285480405).

Almost surely, 22050020817 is an apocalyptic number.

It is an amenable number.

2050020817 is a deficient number, since it is larger than the sum of its proper divisors (233822423).

2050020817 is a wasteful number, since it uses less digits than its factorization.

2050020817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437763.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2050020817 is about 45277.1555754113. The cubic root of 2050020817 is about 1270.3383926839.

The spelling of 2050020817 in words is "two billion, fifty million, twenty thousand, eight hundred seventeen".

Divisors: 1 13 29 377 5437721 70690373 157693909 2050020817