Base | Representation |
---|---|
bin | 11100100110001100… |
… | …011000101100100101 |
3 | 2221020220220122222210 |
4 | 130212030120230211 |
5 | 1000341110132130 |
6 | 22034514314033 |
7 | 2134624613151 |
oct | 344614305445 |
9 | 87226818883 |
10 | 30705552165 |
11 | 120275358a2 |
12 | 5b4b288919 |
13 | 2b845c96a2 |
14 | 16b402a061 |
15 | beaa465b0 |
hex | 726318b25 |
30705552165 has 16 divisors (see below), whose sum is σ = 49149471168. Its totient is φ = 16369431936.
The previous prime is 30705552103. The next prime is 30705552191. The reversal of 30705552165 is 56125550703.
It is not a de Polignac number, because 30705552165 - 28 = 30705551909 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391819 + ... + 463608.
It is an arithmetic number, because the mean of its divisors is an integer number (3071841948).
Almost surely, 230705552165 is an apocalyptic number.
It is an amenable number.
30705552165 is a deficient number, since it is larger than the sum of its proper divisors (18443919003).
30705552165 is a wasteful number, since it uses less digits than its factorization.
30705552165 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 857828.
The product of its (nonzero) digits is 157500, while the sum is 39.
The spelling of 30705552165 in words is "thirty billion, seven hundred five million, five hundred fifty-two thousand, one hundred sixty-five".
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