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22311000001 = 73305630137
BaseRepresentation
bin10100110001110101…
…101101011111000001
32010120220002020021101
4110301311231133001
5331143104000001
614125522054401
71416613241143
oct246165553701
963526066241
1022311000001
119509a83584
1243a7aaa401
132147401864
1411191b8c93
158a8ab1a01
hex531d6d7c1

22311000001 has 4 divisors (see below), whose sum is σ = 22616630212. Its totient is φ = 22005369792.

The previous prime is 22310999999. The next prime is 22311000011. The reversal of 22311000001 is 10000011322.

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 7833135025 + 14477864976 = 88505^2 + 120324^2 .

It is a cyclic number.

It is not a de Polignac number, because 22311000001 - 21 = 22310999999 is a prime.

It is a super-3 number, since 3×223110000013 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22311000011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152814996 + ... + 152815141.

It is an arithmetic number, because the mean of its divisors is an integer number (5654157553).

Almost surely, 222311000001 is an apocalyptic number.

It is an amenable number.

22311000001 is a deficient number, since it is larger than the sum of its proper divisors (305630211).

22311000001 is an equidigital number, since it uses as much as digits as its factorization.

22311000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305630210.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 22311000001 its reverse (10000011322), we get a palindrome (32311011323).

The spelling of 22311000001 in words is "twenty-two billion, three hundred eleven million, one", and thus it is an aban number.

Divisors: 1 73 305630137 22311000001