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30105242355 = 355941538191
BaseRepresentation
bin11100000010011010…
…011000101011110011
32212201002022202202010
4130002122120223303
5443123420223410
621455151454003
72114015223606
oct340232305363
985632282663
1030105242355
1111849696191
125a02227303
132aba122a96
14165840233d
15bb2eb6c20
hex702698af3

30105242355 has 32 divisors (see below), whose sum is σ = 49002577920. Its totient is φ = 15778264320.

The previous prime is 30105242347. The next prime is 30105242357. The reversal of 30105242355 is 55324250103.

It is not a de Polignac number, because 30105242355 - 23 = 30105242347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30105242357) 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 31 ways as a sum of consecutive naturals, for example, 3671310 + ... + 3679500.

It is an arithmetic number, because the mean of its divisors is an integer number (1531330560).

Almost surely, 230105242355 is an apocalyptic number.

30105242355 is a deficient number, since it is larger than the sum of its proper divisors (18897335565).

30105242355 is a wasteful number, since it uses less digits than its factorization.

30105242355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 30105242355 its reverse (55324250103), we get a palindrome (85429492458).

The spelling of 30105242355 in words is "thirty billion, one hundred five million, two hundred forty-two thousand, three hundred fifty-five".

Divisors: 1 3 5 15 59 177 295 885 4153 8191 12459 20765 24573 40955 62295 122865 245027 483269 735081 1225135 1449807 2416345 3675405 7249035 34017223 102051669 170086115 510258345 2007016157 6021048471 10035080785 30105242355