Base | Representation |
---|---|
bin | 10001110000100000110… |
… | …111000111000111001110 |
3 | 11022122212100012012101100 |
4 | 101300200313013013032 |
5 | 124443204414430110 |
6 | 2332335212123530 |
7 | 154110501052005 |
oct | 21604067070716 |
9 | 4278770165340 |
10 | 1220322030030 |
11 | 430598a77034 |
12 | 17860b4665a6 |
13 | 8b0ca90484c |
14 | 430c74b9c3c |
15 | 21b23d67bc0 |
hex | 11c20dc71ce |
1220322030030 has 96 divisors (see below), whose sum is σ = 3191855116320. Its totient is φ = 323472522240.
The previous prime is 1220322029977. The next prime is 1220322030049. The reversal of 1220322030030 is 300302230221.
It is a happy number.
1220322030030 is a `hidden beast` number, since 12 + 2 + 0 + 322 + 0 + 300 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 1220322029985 and 1220322030012.
It is a congruent number.
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 47 ways as a sum of consecutive naturals, for example, 15323194 + ... + 15402626.
It is an arithmetic number, because the mean of its divisors is an integer number (33248490795).
Almost surely, 21220322030030 is an apocalyptic number.
1220322030030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1220322030030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595927558160).
1220322030030 is an abundant number, since it is smaller than the sum of its proper divisors (1971533086290).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220322030030 is a wasteful number, since it uses less digits than its factorization.
1220322030030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80466 (or 80463 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 1220322030030 its reverse (300302230221), we get a palindrome (1520624260251).
The spelling of 1220322030030 in words is "one trillion, two hundred twenty billion, three hundred twenty-two million, thirty thousand, thirty".
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