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30243463621 = 7109130130467
BaseRepresentation
bin11100001010101001…
…101010000111000101
32220001201102010200021
4130022221222013011
5443414311313441
621521010215141
72120314125220
oct341251520705
986051363607
1030243463621
111190a712938
125a405844b1
132b0c959607
14166c9025b7
15bc01bb3d1
hex70aa6a1c5

30243463621 has 16 divisors (see below), whose sum is σ = 34909015680. Its totient is φ = 25664558400.

The previous prime is 30243463589. The next prime is 30243463639. The reversal of 30243463621 is 12636434203.

It is a cyclic number.

It is not a de Polignac number, because 30243463621 - 25 = 30243463589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243463681) 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, 977430 + ... + 1007896.

It is an arithmetic number, because the mean of its divisors is an integer number (2181813480).

Almost surely, 230243463621 is an apocalyptic number.

It is an amenable number.

30243463621 is a deficient number, since it is larger than the sum of its proper divisors (4665552059).

30243463621 is a wasteful number, since it uses less digits than its factorization.

30243463621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31884.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 30243463621 its reverse (12636434203), we get a palindrome (42879897824).

The spelling of 30243463621 in words is "thirty billion, two hundred forty-three million, four hundred sixty-three thousand, six hundred twenty-one".

Divisors: 1 7 109 763 1301 9107 30467 141809 213269 992663 3320903 23246321 39637567 277462969 4320494803 30243463621