Search a number
-
+
71083190 = 2513995081
BaseRepresentation
bin1000011110010…
…10010010110110
311221202101210202
410033022102312
5121144130230
611015320502
71522124423
oct417122266
9157671722
1071083190
1137140942
121b980132
131195a879
149624d4a
156391a45
hex43ca4b6

71083190 has 16 divisors (see below), whose sum is σ = 128066400. Its totient is φ = 28407360.

The previous prime is 71083189. The next prime is 71083193. The reversal of 71083190 is 9138017.

It is a super-2 number, since 2×710831902 = 10105639801152200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71083193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11450 + ... + 16530.

It is an arithmetic number, because the mean of its divisors is an integer number (8004150).

Almost surely, 271083190 is an apocalyptic number.

71083190 is a deficient number, since it is larger than the sum of its proper divisors (56983210).

71083190 is a wasteful number, since it uses less digits than its factorization.

71083190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6487.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 71083190 is about 8431.0847463420. The cubic root of 71083190 is about 414.2434369972.

The spelling of 71083190 in words is "seventy-one million, eighty-three thousand, one hundred ninety".

Divisors: 1 2 5 10 1399 2798 5081 6995 10162 13990 25405 50810 7108319 14216638 35541595 71083190