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2020051213 = 6173273989
BaseRepresentation
bin111100001100111…
…1000100100001101
312012210002020022121
41320121320210031
513114113114323
6532240412541
7101026103065
oct17031704415
95183066277
102020051213
119472a2414
12484617151
13262677b9b
141523d83a5
15bc523a5d
hex7867890d

2020051213 has 4 divisors (see below), whose sum is σ = 2023325820. Its totient is φ = 2016776608.

The previous prime is 2020051151. The next prime is 2020051217. The reversal of 2020051213 is 3121500202.

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 191462569 + 1828588644 = 13837^2 + 42762^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020051213 - 29 = 2020050701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020051217) 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, 1636378 + ... + 1637611.

It is an arithmetic number, because the mean of its divisors is an integer number (505831455).

Almost surely, 22020051213 is an apocalyptic number.

It is an amenable number.

2020051213 is a deficient number, since it is larger than the sum of its proper divisors (3274607).

2020051213 is an equidigital number, since it uses as much as digits as its factorization.

2020051213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274606.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2020051213 is about 44944.9798420246. The cubic root of 2020051213 is about 1264.1175477276.

Adding to 2020051213 its reverse (3121500202), we get a palindrome (5141551415).

The spelling of 2020051213 in words is "two billion, twenty million, fifty-one thousand, two hundred thirteen".

Divisors: 1 617 3273989 2020051213