Base | Representation |
---|---|
bin | 100001010000110011… |
… | …0011011001101110100 |
3 | 20211101010102120212211 |
4 | 1002201212123031310 |
5 | 2132242223301320 |
6 | 52451555223204 |
7 | 5106055526425 |
oct | 1024146331564 |
9 | 224333376784 |
10 | 71430681460 |
11 | 28325837246 |
12 | 11a15ba7b04 |
13 | 6974979328 |
14 | 3658a3364c |
15 | 1cd101655a |
hex | 10a199b374 |
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".
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