Base | Representation |
---|---|
bin | 1101101111100011000010… |
… | …10101110110100010100100 |
3 | 10222000002202001111011021200 |
4 | 12313301201111312202210 |
5 | 12430120123342404103 |
6 | 144135202445242500 |
7 | 6236253060116331 |
oct | 667614125664244 |
9 | 128002661434250 |
10 | 30221023013028 |
11 | 96a17336a3091 |
12 | 3481053563430 |
13 | 13b2aa406cbb3 |
14 | 7669c3571988 |
15 | 3761b8be40a3 |
hex | 1b7c615768a4 |
30221023013028 has 36 divisors (see below), whose sum is σ = 76394007208428. Its totient is φ = 10073413658880.
The previous prime is 30221023012967. The next prime is 30221023013081. The reversal of 30221023013028 is 82031032012203.
It is a happy number.
30221023013028 is a `hidden beast` number, since 30 + 2 + 21 + 0 + 2 + 301 + 302 + 8 = 666.
30221023013028 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 22967653681764 + 7253369331264 = 4792458^2 + 2693208^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-4 number, since 4×302210230130284 (a number of 55 digits) contains 4444 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30221023012992 and 30221023013010.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 9448593 + ... + 12235928.
Almost surely, 230221023013028 is an apocalyptic number.
It is an amenable number.
30221023013028 is an abundant number, since it is smaller than the sum of its proper divisors (46172984195400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30221023013028 is a wasteful number, since it uses less digits than its factorization.
30221023013028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21723244 (or 21723239 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 27.
The spelling of 30221023013028 in words is "thirty trillion, two hundred twenty-one billion, twenty-three million, thirteen thousand, twenty-eight".
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