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2020144423 = 111271446059
BaseRepresentation
bin111100001101000…
…1111010100100111
312012210020222011211
41320122033110213
513114124110143
6532242412251
7101026641613
oct17032172447
95183228154
102020144423
11947356450
12484661087
132626ab43b
14152420343
15bc54149d
hex7868f527

2020144423 has 8 divisors (see below), whose sum is σ = 2221148160. Its totient is φ = 1822033080.

The previous prime is 2020144421. The next prime is 2020144447. The reversal of 2020144423 is 3244410202.

It is a happy number.

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 2020144423 - 21 = 2020144421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020144394 and 2020144403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020144421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721633 + ... + 724426.

It is an arithmetic number, because the mean of its divisors is an integer number (277643520).

Almost surely, 22020144423 is an apocalyptic number.

2020144423 is a deficient number, since it is larger than the sum of its proper divisors (201003737).

2020144423 is a wasteful number, since it uses less digits than its factorization.

2020144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446197.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2020144423 is about 44946.0167645588. The cubic root of 2020144423 is about 1264.1369905654.

Adding to 2020144423 its reverse (3244410202), we get a palindrome (5264554625).

The spelling of 2020144423 in words is "two billion, twenty million, one hundred forty-four thousand, four hundred twenty-three".

Divisors: 1 11 127 1397 1446059 15906649 183649493 2020144423