Search a number
-
+
30102210000000 = 2732571931733
BaseRepresentation
bin1101101100000101101111…
…00010001011010010000000
310221120202001202211201210200
412312002313202023102000
512421143311230000000
6144004433034125200
76224545553143335
oct666026742132200
9127522052751720
1030102210000000
119656303866936
123462015280800
1313a481aa71ba8
14760d51b2c98c
15373063058500
hex1b60b788b480

30102210000000 has 768 divisors, whose sum is σ = 108901355977440. Its totient is φ = 7981056000000.

The previous prime is 30102209999923. The next prime is 30102210000017. The reversal of 30102210000000 is 1220103.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 28002469893696 + 2099740106304 = 5291736^2 + 1449048^2 .

It is a super-2 number, since 2×301022100000002 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17369999134 + ... + 17370000866.

Almost surely, 230102210000000 is an apocalyptic number.

30102210000000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30102210000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54450677988720).

30102210000000 is an abundant number, since it is smaller than the sum of its proper divisors (78799145977440).

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

30102210000000 is an frugal number, since it uses more digits than its factorization.

30102210000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 30102210000000 its reverse (1220103), we get a palindrome (30102211220103).

The spelling of 30102210000000 in words is "thirty trillion, one hundred two billion, two hundred ten million", and thus it is an aban number.