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BaseRepresentation
bin111100001100110…
…1100010101001101
312012202222200120121
41320121230111031
513114110013401
6532235344541
7101025504016
oct17031542515
95182880517
102020001101
119472687a8
124845b2151
1326265b131
141523c400d
15bc513ca1
hex7866c54d

2020001101 has 4 divisors (see below), whose sum is σ = 2020402204. Its totient is φ = 2019600000.

The previous prime is 2020001089. The next prime is 2020001117. The reversal of 2020001101 is 1011000202.

Adding to 2020001101 its reverse (1011000202), we get a palindrome (3031001303).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1011000202 = 2505500101.

It can be written as a sum of positive squares in 2 ways, for example, as 6325225 + 2013675876 = 2515^2 + 44874^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020001101 - 25 = 2020001069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001201) 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, 192900 + ... + 203101.

It is an arithmetic number, because the mean of its divisors is an integer number (505100551).

Almost surely, 22020001101 is an apocalyptic number.

It is an amenable number.

2020001101 is a deficient number, since it is larger than the sum of its proper divisors (401103).

2020001101 is an equidigital number, since it uses as much as digits as its factorization.

2020001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401102.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2020001101 is about 44944.4223569510. The cubic root of 2020001101 is about 1264.1070945302.

The spelling of 2020001101 in words is "two billion, twenty million, one thousand, one hundred one".

Divisors: 1 5101 396001 2020001101