Search a number
-
+
38434485085 = 597397433461
BaseRepresentation
bin100011110010110111…
…111011001101011101
310200012120021010202121
4203302313323031131
51112203212010320
625353452222541
72530304506243
oct436267731535
9120176233677
1038434485085
11153332a0567
12754776aa51
133816932089
141c086d2793
15eee34a8aa
hex8f2dfb35d

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".

Divisors: 1 5 97 397 433 461 485 1985 2165 2305 38509 42001 44717 171901 183017 192545 199613 210005 223585 859505 915085 998065 16674397 17752649 19362461 79246361 83371985 88763245 96812305 396231805 7686897017 38434485085