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30401220245 = 5111675635879
BaseRepresentation
bin11100010100000011…
…011100111010010101
32220110201021000002012
4130110003130322111
5444230203021440
621544403354005
72124241052114
oct342403347225
986421230065
1030401220245
1111990772810
125a85382905
132b36542c26
141685849c7b
15bcde7de65
hex7140dce95

30401220245 has 32 divisors (see below), whose sum is σ = 40114206720. Its totient is φ = 21934815040.

The previous prime is 30401220197. The next prime is 30401220259. The reversal of 30401220245 is 54202210403.

It is a happy number.

It is not a de Polignac number, because 30401220245 - 26 = 30401220181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30401220245.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5168216 + ... + 5174094.

It is an arithmetic number, because the mean of its divisors is an integer number (1253568960).

Almost surely, 230401220245 is an apocalyptic number.

It is an amenable number.

30401220245 is a deficient number, since it is larger than the sum of its proper divisors (9712986475).

30401220245 is a wasteful number, since it uses less digits than its factorization.

30401220245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 30401220245 its reverse (54202210403), we get a palindrome (84603430648).

The spelling of 30401220245 in words is "thirty billion, four hundred one million, two hundred twenty thousand, two hundred forty-five".

Divisors: 1 5 11 55 167 563 835 1837 2815 5879 6193 9185 29395 30965 64669 94021 323345 470105 981793 1034231 3309877 4908965 5171155 10799723 16549385 36408647 53998615 182043235 552749459 2763747295 6080244049 30401220245