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2102220163 = 4348888841
BaseRepresentation
bin111110101001101…
…0101010110000011
312102111200211221001
41331103111112003
513301132021123
6544333512431
7103044401521
oct17523252603
95374624831
102102220163
1198971513a
124a8042717
132766b7574
1415d2a7311
15c48550ad
hex7d4d5583

2102220163 has 4 divisors (see below), whose sum is σ = 2151109048. Its totient is φ = 2053331280.

The previous prime is 2102220151. The next prime is 2102220191. The reversal of 2102220163 is 3610222012.

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

It is a cyclic number.

It is not a de Polignac number, because 2102220163 - 213 = 2102211971 is a prime.

It is a super-2 number, since 2×21022201632 = 8838659227447493138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102220163.

It is not an unprimeable number, because it can be changed into a prime (2102220193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24444378 + ... + 24444463.

It is an arithmetic number, because the mean of its divisors is an integer number (537777262).

Almost surely, 22102220163 is an apocalyptic number.

2102220163 is a deficient number, since it is larger than the sum of its proper divisors (48888885).

2102220163 is an equidigital number, since it uses as much as digits as its factorization.

2102220163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48888884.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2102220163 is about 45849.9745147148. The cubic root of 2102220163 is about 1281.0302908832.

Adding to 2102220163 its reverse (3610222012), we get a palindrome (5712442175).

The spelling of 2102220163 in words is "two billion, one hundred two million, two hundred twenty thousand, one hundred sixty-three".

Divisors: 1 43 48888841 2102220163