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2020392947 = 3975089151
BaseRepresentation
bin111100001101100…
…1011111111110011
312012210201121002102
41320123023333303
513114210033242
6532252011015
7101032025306
oct17033137763
95183647072
102020392947
11947506141
12484760a6b
132627675b1
14152486b3d
15bc58ee32
hex786cbff3

2020392947 has 4 divisors (see below), whose sum is σ = 2025482496. Its totient is φ = 2015303400.

The previous prime is 2020392937. The next prime is 2020392961. The reversal of 2020392947 is 7492930202.

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

It is a cyclic number.

It is not a de Polignac number, because 2020392947 - 28 = 2020392691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020392947.

It is not an unprimeable number, because it can be changed into a prime (2020392917) 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, 2544179 + ... + 2544972.

It is an arithmetic number, because the mean of its divisors is an integer number (506370624).

Almost surely, 22020392947 is an apocalyptic number.

2020392947 is a deficient number, since it is larger than the sum of its proper divisors (5089549).

2020392947 is an equidigital number, since it uses as much as digits as its factorization.

2020392947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089548.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2020392947 is about 44948.7813739149. The cubic root of 2020392947 is about 1264.1888277007.

The spelling of 2020392947 in words is "two billion, twenty million, three hundred ninety-two thousand, nine hundred forty-seven".

Divisors: 1 397 5089151 2020392947