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30221102513112 = 233717193293187123
BaseRepresentation
bin1101101111100011001100…
…00101000111101111011000
310222000002221121002011220020
412313301212011013233120
512430120304220404422
6144135214405230440
76236255043631110
oct667614605075730
9128002847064806
1030221102513112
1196a1774562735
123481076102420
1313b2ab7686874
147669cdd48040
153761c0b9995c
hex1b7c66147bd8

30221102513112 has 256 divisors, whose sum is σ = 92213030568960. Its totient is φ = 8056940396544.

The previous prime is 30221102513083. The next prime is 30221102513123. The reversal of 30221102513112 is 21131520112203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161410383 + ... + 161597505.

It is an arithmetic number, because the mean of its divisors is an integer number (360207150660).

Almost surely, 230221102513112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30221102513112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46106515284480).

30221102513112 is an abundant number, since it is smaller than the sum of its proper divisors (61991928055848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221102513112 is a wasteful number, since it uses less digits than its factorization.

30221102513112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187642 (or 187638 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 30221102513112 its reverse (21131520112203), we get a palindrome (51352622625315).

The spelling of 30221102513112 in words is "thirty trillion, two hundred twenty-one billion, one hundred two million, five hundred thirteen thousand, one hundred twelve".