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2020240001 = 13155403077
BaseRepresentation
bin111100001101010…
…0110101010000001
312012210102211021202
41320122212222001
513114140140001
6532244430545
7101030520353
oct17032465201
95183384252
102020240001
1194741123a
124846a8455
13262712ab0
141524470d3
15bc55e96b
hex786a6a81

2020240001 has 4 divisors (see below), whose sum is σ = 2175643092. Its totient is φ = 1864836912.

The previous prime is 2020239973. The next prime is 2020240051. The reversal of 2020240001 is 1000420202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000420202 = 2500210101.

It can be written as a sum of positive squares in 2 ways, for example, as 693532225 + 1326707776 = 26335^2 + 36424^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020240001 - 230 = 946498177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020240051) 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, 77701526 + ... + 77701551.

It is an arithmetic number, because the mean of its divisors is an integer number (543910773).

Almost surely, 22020240001 is an apocalyptic number.

It is an amenable number.

2020240001 is a deficient number, since it is larger than the sum of its proper divisors (155403091).

2020240001 is a wasteful number, since it uses less digits than its factorization.

2020240001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155403090.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2020240001 is about 44947.0800052684. The cubic root of 2020240001 is about 1264.1569267275.

Adding to 2020240001 its reverse (1000420202), we get a palindrome (3020660203).

The spelling of 2020240001 in words is "two billion, twenty million, two hundred forty thousand, one".

Divisors: 1 13 155403077 2020240001