Base | Representation |
---|---|
bin | 11100101100001101… |
… | …001001110101110011 |
3 | 2221111221201010012100 |
4 | 130230031021311303 |
5 | 1001042420314010 |
6 | 22052520231443 |
7 | 2140261136052 |
oct | 345415116563 |
9 | 87457633170 |
10 | 30806416755 |
11 | 12079467964 |
12 | 5b7900b583 |
13 | 2b9c48388a |
14 | 16c35a4399 |
15 | c0481c2c0 |
hex | 72c349d73 |
30806416755 has 96 divisors (see below), whose sum is σ = 55028533248. Its totient is φ = 15938208000.
The previous prime is 30806416721. The next prime is 30806416787. The reversal of 30806416755 is 55761460803.
It is not a de Polignac number, because 30806416755 - 26 = 30806416691 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 30806416755.
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 95 ways as a sum of consecutive naturals, for example, 71476390 + ... + 71476820.
It is an arithmetic number, because the mean of its divisors is an integer number (573213888).
Almost surely, 230806416755 is an apocalyptic number.
30806416755 is a deficient number, since it is larger than the sum of its proper divisors (24222116493).
30806416755 is a wasteful number, since it uses less digits than its factorization.
30806416755 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 817 (or 814 counting only the distinct ones).
The product of its (nonzero) digits is 604800, while the sum is 45.
It can be divided in two parts, 30806 and 416755, that added together give a square (447561 = 6692).
The spelling of 30806416755 in words is "thirty billion, eight hundred six million, four hundred sixteen thousand, seven hundred fifty-five".
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