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3030012221 = 176710126339
BaseRepresentation
bin1011010010011010…
…0101000100111101
321211011111120100212
42310212211010331
522201140342341
61220355402205
7135041451605
oct26446450475
97734446325
103030012221
1113153aa035
127068b3365
13393991c52
1420a5b9c05
1512b0215eb
hexb49a513d

3030012221 has 16 divisors (see below), whose sum is σ = 3288496320. Its totient is φ = 2781292800.

The previous prime is 3030012131. The next prime is 3030012239. The reversal of 3030012221 is 1222100303.

It is a happy number.

3030012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3030012221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3030012196 and 3030012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030012521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101870 + ... + 128208.

It is an arithmetic number, because the mean of its divisors is an integer number (205531020).

Almost surely, 23030012221 is an apocalyptic number.

It is an amenable number.

3030012221 is a deficient number, since it is larger than the sum of its proper divisors (258484099).

3030012221 is a wasteful number, since it uses less digits than its factorization.

3030012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26524.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3030012221 is about 55045.5467862751. The cubic root of 3030012221 is about 1447.0430777822.

Adding to 3030012221 its reverse (1222100303), we get a palindrome (4252112524).

The spelling of 3030012221 in words is "three billion, thirty million, twelve thousand, two hundred twenty-one".

Divisors: 1 17 67 101 1139 1717 6767 26339 115039 447763 1764713 2660239 30000121 45224063 178236013 3030012221