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2244468889 = 13213280881
BaseRepresentation
bin1000010111000111…
…1110000010011001
312210102100211111101
42011301332002121
514044041001024
61010414431401
7106422446035
oct20561760231
95712324441
102244468889
11a51a42773
12527802561
1329a001300
141741351c5
15d20a2c44
hex85c7e099

2244468889 has 6 divisors (see below), whose sum is σ = 2430401406. Its totient is φ = 2071817280.

The previous prime is 2244468887. The next prime is 2244468899. The reversal of 2244468889 is 9888644422.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20403289 + 2224065600 = 4517^2 + 47160^2 .

It is not a de Polignac number, because 2244468889 - 21 = 2244468887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2244468887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6640272 + ... + 6640609.

It is an arithmetic number, because the mean of its divisors is an integer number (405066901).

Almost surely, 22244468889 is an apocalyptic number.

It is an amenable number.

2244468889 is a deficient number, since it is larger than the sum of its proper divisors (185932517).

2244468889 is a wasteful number, since it uses less digits than its factorization.

2244468889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13280907 (or 13280894 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 55.

The square root of 2244468889 is about 47375.8259980763. The cubic root of 2244468889 is about 1309.2960670413.

The spelling of 2244468889 in words is "two billion, two hundred forty-four million, four hundred sixty-eight thousand, eight hundred eighty-nine".

Divisors: 1 13 169 13280881 172651453 2244468889