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82478491270 = 2575946343133
BaseRepresentation
bin100110011010000011…
…0011110011010000110
321212220001211110211221
41030310012132122012
52322403443210040
6101520132150554
75646615415450
oct1146406363206
9255801743757
1082478491270
1131a84a5a27a
1213b99a6845a
137a157731b6
143dc5dcb2d0
15222ad9b74a
hex133419e686

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".

Divisors: 1 2 5 7 10 14 35 59 70 118 295 413 463 590 826 926 2065 2315 3241 4130 4630 6482 16205 27317 32410 43133 54634 86266 136585 191219 215665 273170 301931 382438 431330 603862 956095 1509655 1912190 2544847 3019310 5089694 12724235 17813929 19970579 25448470 35627858 39941158 89069645 99852895 139794053 178139290 199705790 279588106 698970265 1178264161 1397940530 2356528322 5891320805 8247849127 11782641610 16495698254 41239245635 82478491270