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2020111441 = 6133116581
BaseRepresentation
bin111100001101000…
…0111010001010001
312012210012021221021
41320122013101101
513114122031231
6532241555441
7101026443505
oct17032072121
95183167837
102020111441
11947333697
12484645b81
1326269941a
14152412305
15bc536811
hex78687451

2020111441 has 4 divisors (see below), whose sum is σ = 2053228084. Its totient is φ = 1986994800.

The previous prime is 2020111433. The next prime is 2020111517. The reversal of 2020111441 is 1441110202.

It is a happy number.

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 1075840000 + 944271441 = 32800^2 + 30729^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020111441 - 23 = 2020111433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020111421) 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, 16558230 + ... + 16558351.

It is an arithmetic number, because the mean of its divisors is an integer number (513307021).

Almost surely, 22020111441 is an apocalyptic number.

It is an amenable number.

2020111441 is a deficient number, since it is larger than the sum of its proper divisors (33116643).

2020111441 is an equidigital number, since it uses as much as digits as its factorization.

2020111441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33116642.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2020111441 is about 44945.6498562430. The cubic root of 2020111441 is about 1264.1301108604.

Adding to 2020111441 its reverse (1441110202), we get a palindrome (3461221643).

The spelling of 2020111441 in words is "two billion, twenty million, one hundred eleven thousand, four hundred forty-one".

Divisors: 1 61 33116581 2020111441