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2020444025 = 5280817761
BaseRepresentation
bin111100001101101…
…1000011101111001
312012210211012011012
41320123120131321
513114213202100
6532253043305
7101032330235
oct17033303571
95183735135
102020444025
11947540556
12484786535
13262784912
1415249b5c5
15bc5a0135
hex786d8779

2020444025 has 6 divisors (see below), whose sum is σ = 2505350622. Its totient is φ = 1616355200.

The previous prime is 2020444009. The next prime is 2020444093. The reversal of 2020444025 is 5204440202.

It can be written as a sum of positive squares in 3 ways, for example, as 79512889 + 1940931136 = 8917^2 + 44056^2 .

It is not a de Polignac number, because 2020444025 - 24 = 2020444009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40408856 + ... + 40408905.

It is an arithmetic number, because the mean of its divisors is an integer number (417558437).

Almost surely, 22020444025 is an apocalyptic number.

2020444025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2020444025 is a deficient number, since it is larger than the sum of its proper divisors (484906597).

2020444025 is an equidigital number, since it uses as much as digits as its factorization.

2020444025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80817771 (or 80817766 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 2020444025 is about 44949.3495503550. The cubic root of 2020444025 is about 1264.1994810231.

Adding to 2020444025 its reverse (5204440202), we get a palindrome (7224884227).

The spelling of 2020444025 in words is "two billion, twenty million, four hundred forty-four thousand, twenty-five".

Divisors: 1 5 25 80817761 404088805 2020444025