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2020102101001 = 171011176530053
BaseRepresentation
bin11101011001010111011…
…101111101100000001001
321011010020101111101110101
4131121113131331200021
5231044132114213001
64144004434445401
7265643004354355
oct35312735754011
97133211441411
102020102101001
117097a1a768a6
12287614133861
13118658139baa
146dab8552465
1537832bb5a01
hex1d65777d809

2020102101001 has 8 divisors (see below), whose sum is σ = 2160109179144. Its totient is φ = 1882448083200.

The previous prime is 2020102100987. The next prime is 2020102101007. The reversal of 2020102101001 is 1001012010202.

It can be written as a sum of positive squares in 4 ways, for example, as 1530913764601 + 489188336400 = 1237301^2 + 699420^2 .

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 2020102101001 - 25 = 2020102100969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020102101007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588263310 + ... + 588266743.

It is an arithmetic number, because the mean of its divisors is an integer number (270013647393).

Almost surely, 22020102101001 is an apocalyptic number.

It is an amenable number.

2020102101001 is a deficient number, since it is larger than the sum of its proper divisors (140007078143).

2020102101001 is a wasteful number, since it uses less digits than its factorization.

2020102101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176530171.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2020102101001 its reverse (1001012010202), we get a palindrome (3021114111203).

The spelling of 2020102101001 in words is "two trillion, twenty billion, one hundred two million, one hundred one thousand, one".

Divisors: 1 17 101 1717 1176530053 20001010901 118829535353 2020102101001