Base | Representation |
---|---|
bin | 11100001001111011… |
… | …110101011001101100 |
3 | 2220000212210211210102 |
4 | 130021323311121230 |
5 | 443403222414434 |
6 | 21515500530232 |
7 | 2120110044551 |
oct | 341173653154 |
9 | 86025724712 |
10 | 30231451244 |
11 | 11903958855 |
12 | 5a38550978 |
13 | 2b0a311ab7 |
14 | 166b096a28 |
15 | bbe0e707e |
hex | 709ef566c |
30231451244 has 12 divisors (see below), whose sum is σ = 54729351600. Its totient is φ = 14594493648.
The previous prime is 30231451207. The next prime is 30231451253. The reversal of 30231451244 is 44215413203.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130307864 + ... + 130308095.
It is an arithmetic number, because the mean of its divisors is an integer number (4560779300).
Almost surely, 230231451244 is an apocalyptic number.
It is an amenable number.
30231451244 is a deficient number, since it is larger than the sum of its proper divisors (24497900356).
30231451244 is a wasteful number, since it uses less digits than its factorization.
30231451244 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260615992 (or 260615990 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 29.
Adding to 30231451244 its reverse (44215413203), we get a palindrome (74446864447).
The spelling of 30231451244 in words is "thirty billion, two hundred thirty-one million, four hundred fifty-one thousand, two hundred forty-four".
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