Base | Representation |
---|---|
bin | 11100010101110011… |
… | …111100001101010001 |
3 | 2220112202202011110001 |
4 | 130111303330031101 |
5 | 444310230133221 |
6 | 21551335410001 |
7 | 2125046516641 |
oct | 342563741521 |
9 | 86482664401 |
10 | 30430708561 |
11 | 119a6383820 |
12 | 5a93223901 |
13 | 2b3c699036 |
14 | 1689724521 |
15 | bd1856391 |
hex | 715cfc351 |
30430708561 has 8 divisors (see below), whose sum is σ = 33200564544. Its totient is φ = 27661423920.
The previous prime is 30430708547. The next prime is 30430708573. The reversal of 30430708561 is 16580703403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30430708561 - 27 = 30430708433 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30430708561.
It is not an unprimeable number, because it can be changed into a prime (30430708261) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 27405 + ... + 248218.
It is an arithmetic number, because the mean of its divisors is an integer number (4150070568).
Almost surely, 230430708561 is an apocalyptic number.
It is an amenable number.
30430708561 is a deficient number, since it is larger than the sum of its proper divisors (2769855983).
30430708561 is a wasteful number, since it uses less digits than its factorization.
30430708561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 285671.
The product of its (nonzero) digits is 60480, while the sum is 37.
The spelling of 30430708561 in words is "thirty billion, four hundred thirty million, seven hundred eight thousand, five hundred sixty-one".
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