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2086801 = 17122753
BaseRepresentation
bin111111101011110010001
310221000112221
413331132101
51013234201
6112421041
723510653
oct7753621
93830487
102086801
1111a5932
12847781
13580ac2
143c46d3
152b34a1
hex1fd791

2086801 has 4 divisors (see below), whose sum is σ = 2209572. Its totient is φ = 1964032.

The previous prime is 2086793. The next prime is 2086817. The reversal of 2086801 is 1086802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1134225 + 952576 = 1065^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 2086801 - 23 = 2086793 is a prime.

It is a Duffinian number.

2086801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2086831) 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, 61360 + ... + 61393.

It is an arithmetic number, because the mean of its divisors is an integer number (552393).

22086801 is an apocalyptic number.

It is an amenable number.

2086801 is a deficient number, since it is larger than the sum of its proper divisors (122771).

2086801 is a wasteful number, since it uses less digits than its factorization.

2086801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122770.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 2086801 is about 1444.5764085018. The cubic root of 2086801 is about 127.7890609374.

Subtracting from 2086801 its reverse (1086802), we obtain a palindrome (999999).

The spelling of 2086801 in words is "two million, eighty-six thousand, eight hundred one".

Divisors: 1 17 122753 2086801