Base | Representation |
---|---|
bin | 11100011010101010… |
… | …100000100100101001 |
3 | 2220202102221101220021 |
4 | 130122222200210221 |
5 | 444442100402103 |
6 | 22003404400441 |
7 | 2130055521232 |
oct | 343252404451 |
9 | 86672841807 |
10 | 30512122153 |
11 | 11a3832aa87 |
12 | 5ab6546121 |
13 | 2b53502966 |
14 | 1696478089 |
15 | bd8a88bbd |
hex | 71aaa0929 |
30512122153 has 8 divisors (see below), whose sum is σ = 30899563200. Its totient is φ = 30127022640.
The previous prime is 30512122111. The next prime is 30512122159. The reversal of 30512122153 is 35122121503.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30512122153 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30512122159) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559150 + ... + 611287.
It is an arithmetic number, because the mean of its divisors is an integer number (3862445400).
Almost surely, 230512122153 is an apocalyptic number.
It is an amenable number.
30512122153 is a deficient number, since it is larger than the sum of its proper divisors (387441047).
30512122153 is a wasteful number, since it uses less digits than its factorization.
30512122153 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1170767.
The product of its (nonzero) digits is 1800, while the sum is 25.
Adding to 30512122153 its reverse (35122121503), we get a palindrome (65634243656).
The spelling of 30512122153 in words is "thirty billion, five hundred twelve million, one hundred twenty-two thousand, one hundred fifty-three".
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