Search a number
-
+
71430681460 = 22583317135743
BaseRepresentation
bin100001010000110011…
…0011011001101110100
320211101010102120212211
41002201212123031310
52132242223301320
652451555223204
75106055526425
oct1024146331564
9224333376784
1071430681460
1128325837246
1211a15ba7b04
136974979328
143658a3364c
151cd101655a
hex10a199b374

71430681460 has 48 divisors (see below), whose sum is σ = 152291736576. Its totient is φ = 28138773632.

The previous prime is 71430681449. The next prime is 71430681493. The reversal of 71430681460 is 6418603417.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458349 + ... + 594091.

It is an arithmetic number, because the mean of its divisors is an integer number (3172744512).

Almost surely, 271430681460 is an apocalyptic number.

It is an amenable number.

71430681460 is an abundant number, since it is smaller than the sum of its proper divisors (80861055116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71430681460 is a wasteful number, since it uses less digits than its factorization.

71430681460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136152 (or 136150 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 71430681460 in words is "seventy-one billion, four hundred thirty million, six hundred eighty-one thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 83 166 317 332 415 634 830 1268 1585 1660 3170 6340 26311 52622 105244 131555 135743 263110 271486 526220 542972 678715 1357430 2714860 11266669 22533338 43030531 45066676 56333345 86061062 112666690 172122124 215152655 225333380 430305310 860610620 3571534073 7143068146 14286136292 17857670365 35715340730 71430681460