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82390608 = 243521191
BaseRepresentation
bin1001110100100…
…10111001010000
312202000212200000
410322102321100
5132042444413
612101530000
72020210566
oct472227120
9182025600
1082390608
1142564313
1223713900
13140b9551
14ad29a36
157377073
hex4e92e50

82390608 has 60 divisors (see below), whose sum is σ = 239130528. Its totient is φ = 27462240.

The previous prime is 82390597. The next prime is 82390613. The reversal of 82390608 is 80609328.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6708 + ... + 14483.

Almost surely, 282390608 is an apocalyptic number.

It is an amenable number.

82390608 is an abundant number, since it is smaller than the sum of its proper divisors (156739920).

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

82390608 is a wasteful number, since it uses less digits than its factorization.

82390608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214 (or 21196 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 82390608 is about 9076.9272333758. The cubic root of 82390608 is about 435.1368891417.

The spelling of 82390608 in words is "eighty-two million, three hundred ninety thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 243 324 432 486 648 972 1296 1944 3888 21191 42382 63573 84764 127146 169528 190719 254292 339056 381438 508584 572157 762876 1017168 1144314 1525752 1716471 2288628 3051504 3432942 4577256 5149413 6865884 9154512 10298826 13731768 20597652 27463536 41195304 82390608