Base | Representation |
---|---|
bin | 100110011010000011… |
… | …0011110011010000110 |
3 | 21212220001211110211221 |
4 | 1030310012132122012 |
5 | 2322403443210040 |
6 | 101520132150554 |
7 | 5646615415450 |
oct | 1146406363206 |
9 | 255801743757 |
10 | 82478491270 |
11 | 31a84a5a27a |
12 | 13b99a6845a |
13 | 7a157731b6 |
14 | 3dc5dcb2d0 |
15 | 222ad9b74a |
hex | 133419e686 |
82478491270 has 64 divisors (see below), whose sum is σ = 172922480640. Its totient is φ = 27738361728.
The previous prime is 82478491231. The next prime is 82478491273. The reversal of 82478491270 is 7219487428.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (82478491273) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 1890624 + ... + 1933756.
It is an arithmetic number, because the mean of its divisors is an integer number (2701913760).
Almost surely, 282478491270 is an apocalyptic number.
82478491270 is an abundant number, since it is smaller than the sum of its proper divisors (90443989370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
82478491270 is a wasteful number, since it uses less digits than its factorization.
82478491270 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43669.
The product of its (nonzero) digits is 1806336, while the sum is 52.
The spelling of 82478491270 in words is "eighty-two billion, four hundred seventy-eight million, four hundred ninety-one thousand, two hundred seventy".
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