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82660942 = 2731322331
BaseRepresentation
bin1001110110101…
…00111001001110
312202112121111101
410323110321032
5132130122232
612111413314
72022415000
oct473247116
9182477441
1082660942
1142729431
122382423a
1314182600
14ad9a370
1573cc1e7
hex4ed4e4e

82660942 has 96 divisors (see below), whose sum is σ = 168652800. Its totient is φ = 30270240.

The previous prime is 82660931. The next prime is 82660943. The reversal of 82660942 is 24906628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82660943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2666467 + ... + 2666497.

It is an arithmetic number, because the mean of its divisors is an integer number (1756800).

Almost surely, 282660942 is an apocalyptic number.

82660942 is an abundant number, since it is smaller than the sum of its proper divisors (85991858).

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

82660942 is a wasteful number, since it uses less digits than its factorization.

82660942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 82660942 is about 9091.8063111793. The cubic root of 82660942 is about 435.6122826247.

The spelling of 82660942 in words is "eighty-two million, six hundred sixty thousand, nine hundred forty-two".

Divisors: 1 2 7 13 14 23 26 31 46 49 62 91 98 161 169 182 217 299 322 338 343 403 434 598 637 686 713 806 1127 1183 1274 1426 1519 2093 2254 2366 2821 3038 3887 4186 4459 4991 5239 5642 7774 7889 8281 8918 9269 9982 10478 10633 14651 15778 16562 18538 19747 21266 27209 29302 34937 36673 39494 54418 57967 64883 69874 73346 102557 115934 120497 129766 138229 190463 205114 240994 244559 256711 276458 380926 454181 489118 513422 843479 908362 1333241 1686958 1796977 2666482 3179267 3593954 5904353 6358534 11808706 41330471 82660942