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30031221230213 = 741149702271151
BaseRepresentation
bin1101101010000001100000…
…10001100000101010000101
310221022221211102221120202212
412311000300101200222011
512414012420113331323
6143512052542313205
76216453441435050
oct665006021405205
9127287742846685
1030031221230213
119629195521455
123450303288805
13139ac1681cb78
1475b739a8da97
153712aac33b78
hex1b5030460a85

30031221230213 has 16 divisors (see below), whose sum is σ = 35394466060800. Its totient is φ = 24944671248000.

The previous prime is 30031221230209. The next prime is 30031221230317. The reversal of 30031221230213 is 31203212213003.

It is not a de Polignac number, because 30031221230213 - 22 = 30031221230209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031220230213) 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, 351092813 + ... + 351178338.

It is an arithmetic number, because the mean of its divisors is an integer number (2212154128800).

Almost surely, 230031221230213 is an apocalyptic number.

It is an amenable number.

30031221230213 is a deficient number, since it is larger than the sum of its proper divisors (5363244830587).

30031221230213 is a wasteful number, since it uses less digits than its factorization.

30031221230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702271348.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30031221230213 its reverse (31203212213003), we get a palindrome (61234433443216).

The spelling of 30031221230213 in words is "thirty trillion, thirty-one billion, two hundred twenty-one million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 7 41 149 287 1043 6109 42763 702271151 4915898057 28793117191 104638401499 201551820337 732468810493 4290174461459 30031221230213