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22000801 is a prime number
BaseRepresentation
bin101001111101…
…1010010100001
31112101202102111
41103323102201
521113011201
62103315321
7355001164
oct123732241
945352374
1022000801
1111467589
12744bb41
134734034
142cc9adb
151de8b51
hex14fb4a1

22000801 has 2 divisors, whose sum is σ = 22000802. Its totient is φ = 22000800.

The previous prime is 22000787. The next prime is 22000817. The reversal of 22000801 is 10800022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21669025 + 331776 = 4655^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000801 - 29 = 22000289 is a prime.

It is not a weakly prime, because it can be changed into another prime (22000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000400 + 11000401.

It is an arithmetic number, because the mean of its divisors is an integer number (11000401).

Almost surely, 222000801 is an apocalyptic number.

It is an amenable number.

22000801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000801 is an equidigital number, since it uses as much as digits as its factorization.

22000801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 22000801 is about 4690.5011459331. The cubic root of 22000801 is about 280.2073336811.

Adding to 22000801 its reverse (10800022), we get a palindrome (32800823).

It can be divided in two parts, 22000 and 801, that added together give a square (22801 = 1512).

The spelling of 22000801 in words is "twenty-two million, eight hundred one", and thus it is an aban number.