Base | Representation |
---|---|
bin | 100001010100100000… |
… | …1010001101010000000 |
3 | 20211200210122210022012 |
4 | 1002221001101222000 |
5 | 2133021110120304 |
6 | 52512203232052 |
7 | 5112126554606 |
oct | 1025101215200 |
9 | 224623583265 |
10 | 71555160704 |
11 | 2838a028355 |
12 | 11a4b818628 |
13 | 69946b0ca1 |
14 | 366b397876 |
15 | 1cdbe0416e |
hex | 10a9051a80 |
71555160704 has 32 divisors (see below), whose sum is σ = 143289953940. Its totient is φ = 35592192000.
The previous prime is 71555160701. The next prime is 71555160727. The reversal of 71555160704 is 40706155517.
It can be written as a sum of positive squares in 2 ways, for example, as 70182606400 + 1372554304 = 264920^2 + 37048^2 .
It is a tau number, because it is divible by the number of its divisors (32).
It is not an unprimeable number, because it can be changed into a prime (71555160701) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423547 + ... + 1472954.
Almost surely, 271555160704 is an apocalyptic number.
It is an amenable number.
71555160704 is an abundant number, since it is smaller than the sum of its proper divisors (71734793236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71555160704 is a wasteful number, since it uses less digits than its factorization.
71555160704 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2896708 (or 2896696 counting only the distinct ones).
The product of its (nonzero) digits is 147000, while the sum is 41.
The spelling of 71555160704 in words is "seventy-one billion, five hundred fifty-five million, one hundred sixty thousand, seven hundred four".
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