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2011020001 = 4361766687
BaseRepresentation
bin111011111011101…
…1011101011100001
312012011002101211021
41313313123223201
513104310120001
6531315045441
7100556250034
oct16767335341
95164071737
102011020001
11942194101
124815a0881
13260835283
1415112701b
15bb83cba1
hex77ddbae1

2011020001 has 8 divisors (see below), whose sum is σ = 2091524864. Its totient is φ = 1932048720.

The previous prime is 2011019999. The next prime is 2011020007. The reversal of 2011020001 is 1000201102.

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 2011020001 - 21 = 2011019999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011020007) 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, 380721 + ... + 385966.

It is an arithmetic number, because the mean of its divisors is an integer number (261440608).

Almost surely, 22011020001 is an apocalyptic number.

It is an amenable number.

2011020001 is a deficient number, since it is larger than the sum of its proper divisors (80504863).

2011020001 is an equidigital number, since it uses as much as digits as its factorization.

2011020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766791.

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

The square root of 2011020001 is about 44844.3976545566. The cubic root of 2011020001 is about 1262.2308679140.

Adding to 2011020001 its reverse (1000201102), we get a palindrome (3011221103).

The spelling of 2011020001 in words is "two billion, eleven million, twenty thousand, one".

Divisors: 1 43 61 2623 766687 32967541 46767907 2011020001