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2000101001 = 61132124821
BaseRepresentation
bin111011100110111…
…0001111010001001
312011101112122202212
41313031301322021
513044011213001
6530245034505
7100364402153
oct16715617211
95141478685
102000101001
11937006538
124799b5a35
1325b4b1322
1414d8c3ad3
15ba8d27bb
hex77371e89

2000101001 has 8 divisors (see below), whose sum is σ = 2034510408. Its totient is φ = 1965744000.

The previous prime is 2000100979. The next prime is 2000101021. The reversal of 2000101001 is 1001010002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37699600 + 1962401401 = 6140^2 + 44299^2 .

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 2000101001 - 226 = 1932992137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000101021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68171 + ... + 92991.

It is an arithmetic number, because the mean of its divisors is an integer number (254313801).

Almost surely, 22000101001 is an apocalyptic number.

It is an amenable number.

2000101001 is a deficient number, since it is larger than the sum of its proper divisors (34409407).

2000101001 is a wasteful number, since it uses less digits than its factorization.

2000101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26203.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 2000101001 is about 44722.4887612485. The cubic root of 2000101001 is about 1259.9422584189.

Adding to 2000101001 its reverse (1001010002), we get a palindrome (3001111003).

Subtracting from 2000101001 its reverse (1001010002), we obtain a palindrome (999090999).

The spelling of 2000101001 in words is "two billion, one hundred one thousand, one".

Divisors: 1 61 1321 24821 80581 1514081 32788541 2000101001