Search a number
-
+
208252308071 = 23107280130211
BaseRepresentation
bin1100000111110011001…
…1100000101001100111
3201220112110110101000002
43001330303200221213
511403000042324241
6235400401411515
721021454261133
oct3017463405147
9656473411002
10208252308071
1180356aa9415
123443b339b9b
131683ac023c2
14a1180a63c3
15563cbac89b
hex307cce0a67

208252308071 has 16 divisors (see below), whose sum is σ = 219423230208. Its totient is φ = 197259216000.

The previous prime is 208252308041. The next prime is 208252308097. The reversal of 208252308071 is 170803252802.

208252308071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 208252308071 - 26 = 208252308007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208252308041) 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 15 ways as a sum of consecutive naturals, for example, 6878156 + ... + 6908366.

It is an arithmetic number, because the mean of its divisors is an integer number (13713951888).

Almost surely, 2208252308071 is an apocalyptic number.

208252308071 is a deficient number, since it is larger than the sum of its proper divisors (11170922137).

208252308071 is a wasteful number, since it uses less digits than its factorization.

208252308071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33142.

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 208252308071 in words is "two hundred eight billion, two hundred fifty-two million, three hundred eight thousand, seventy-one".

Divisors: 1 23 107 2461 2801 30211 64423 299707 694853 3232577 6893261 74349271 84621011 1946283253 9054448177 208252308071