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30243212445 = 353645155313
BaseRepresentation
bin11100001010101000…
…101100110010011101
32220001200221101010110
4130022220230302131
5443414230244240
621521001000233
72120312031015
oct341250546235
986050841113
1030243212445
111190a561156
125a40483079
132b0c89c1a4
14166c878c45
15bc016bc80
hex70aa2cc9d

30243212445 has 16 divisors (see below), whose sum is σ = 48391342272. Its totient is φ = 16128979200.

The previous prime is 30243212443. The next prime is 30243212453. The reversal of 30243212445 is 54421234203.

It is not a de Polignac number, because 30243212445 - 21 = 30243212443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243212443) 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 15 ways as a sum of consecutive naturals, for example, 519109 + ... + 574421.

It is an arithmetic number, because the mean of its divisors is an integer number (3024458892).

Almost surely, 230243212445 is an apocalyptic number.

It is an amenable number.

30243212445 is a deficient number, since it is larger than the sum of its proper divisors (18148129827).

30243212445 is a wasteful number, since it uses less digits than its factorization.

30243212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91772.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 30243212445 its reverse (54421234203), we get a palindrome (84664446648).

The spelling of 30243212445 in words is "thirty billion, two hundred forty-three million, two hundred twelve thousand, four hundred forty-five".

Divisors: 1 3 5 15 36451 55313 109353 165939 182255 276565 546765 829695 2016214163 6048642489 10081070815 30243212445