Base | Representation |
---|---|
bin | 100011110010110111… |
… | …111011001101011101 |
3 | 10200012120021010202121 |
4 | 203302313323031131 |
5 | 1112203212010320 |
6 | 25353452222541 |
7 | 2530304506243 |
oct | 436267731535 |
9 | 120176233677 |
10 | 38434485085 |
11 | 153332a0567 |
12 | 754776aa51 |
13 | 3816932089 |
14 | 1c086d2793 |
15 | eee34a8aa |
hex | 8f2dfb35d |
38434485085 has 32 divisors (see below), whose sum is σ = 46923684192. Its totient is φ = 30218158080.
The previous prime is 38434485049. The next prime is 38434485091. The reversal of 38434485085 is 58058443483.
It can be written as a sum of positive squares in 16 ways, for example, as 16562145636 + 21872339449 = 128694^2 + 147893^2 .
It is not a de Polignac number, because 38434485085 - 215 = 38434452317 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83371755 + ... + 83372215.
It is an arithmetic number, because the mean of its divisors is an integer number (1466365131).
Almost surely, 238434485085 is an apocalyptic number.
It is an amenable number.
38434485085 is a deficient number, since it is larger than the sum of its proper divisors (8489199107).
38434485085 is a wasteful number, since it uses less digits than its factorization.
38434485085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1393.
The product of its (nonzero) digits is 7372800, while the sum is 52.
The spelling of 38434485085 in words is "thirty-eight billion, four hundred thirty-four million, four hundred eighty-five thousand, eighty-five".
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