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30312030321223 = 752116993489113
BaseRepresentation
bin1101110010001100100011…
…10011001011101001000111
310222022210122111210102110221
412321012101303023221013
512433113014230234343
6144245053211525211
76245654240352430
oct671062163135107
9128283574712427
1030312030321223
119727294979792
123496811759807
1313bb54878a911
1476b178160487
153787436e75ed
hex1b9191ccba47

30312030321223 has 16 divisors (see below), whose sum is σ = 34710925847616. Its totient is φ = 25930292244480.

The previous prime is 30312030321217. The next prime is 30312030321257. The reversal of 30312030321223 is 32212303021303.

It is a cyclic number.

It is not a de Polignac number, because 30312030321223 - 229 = 30311493450311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312030321203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61728915 + ... + 62218027.

It is an arithmetic number, because the mean of its divisors is an integer number (2169432865476).

Almost surely, 230312030321223 is an apocalyptic number.

30312030321223 is a deficient number, since it is larger than the sum of its proper divisors (4398895526393).

30312030321223 is a wasteful number, since it uses less digits than its factorization.

30312030321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506634.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 30312030321223 its reverse (32212303021303), we get a palindrome (62524333342526).

The spelling of 30312030321223 in words is "thirty trillion, three hundred twelve billion, thirty million, three hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 7 521 3647 16993 118951 489113 3423791 8853353 61973471 254827873 1783795111 8311497209 58180480463 4330290045889 30312030321223