Search a number
-
+
71385321914 = 2192152364919
BaseRepresentation
bin100001001111011100…
…1011001000110111010
320211020222002002021122
41002132321121012322
52132144120300124
652443255105242
75104665140024
oct1023671310672
9224228062248
1071385321914
1128302175a15
1211a02972222
13696845716a
1436529c7014
151ccc05675e
hex109ee591ba

71385321914 has 24 divisors (see below), whose sum is σ = 113086225440. Its totient is φ = 33791377032.

The previous prime is 71385321901. The next prime is 71385322039. The reversal of 71385321914 is 41912358317.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1067147 + ... + 1132065.

It is an arithmetic number, because the mean of its divisors is an integer number (4711926060).

Almost surely, 271385321914 is an apocalyptic number.

71385321914 is a deficient number, since it is larger than the sum of its proper divisors (41700903526).

71385321914 is a wasteful number, since it uses less digits than its factorization.

71385321914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66482 (or 66463 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The spelling of 71385321914 in words is "seventy-one billion, three hundred eighty-five million, three hundred twenty-one thousand, nine hundred fourteen".

Divisors: 1 2 19 38 361 722 1523 3046 28937 57874 64919 129838 549803 1099606 1233461 2466922 23435759 46871518 98871637 197743274 1878561103 3757122206 35692660957 71385321914