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82576208 = 241121317193
BaseRepresentation
bin1001110110000…
…00001101010000
312202101022021002
410323000031100
5132114414313
612105521132
72021612651
oct473001520
9182338232
1082576208
1142680800
12237a31a8
1314152b80
14ad77528
1573b2058
hex4ec0350

82576208 has 120 divisors (see below), whose sum is σ = 201565224. Its totient is φ = 32440320.

The previous prime is 82576181. The next prime is 82576217. The reversal of 82576208 is 80267528.

It can be written as a sum of positive squares in 4 ways, for example, as 3579664 + 78996544 = 1892^2 + 8888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427760 + ... + 427952.

Almost surely, 282576208 is an apocalyptic number.

82576208 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82576208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100782612).

82576208 is an abundant number, since it is smaller than the sum of its proper divisors (118989016).

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

82576208 is a wasteful number, since it uses less digits than its factorization.

82576208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 82576208 is about 9087.1452062790. The cubic root of 82576208 is about 435.4633860611.

The spelling of 82576208 in words is "eighty-two million, five hundred seventy-six thousand, two hundred eight".

Divisors: 1 2 4 8 11 13 16 17 22 26 34 44 52 68 88 104 121 136 143 176 187 193 208 221 242 272 286 374 386 442 484 572 748 772 884 968 1144 1496 1544 1573 1768 1936 2057 2123 2288 2431 2509 2992 3088 3146 3281 3536 4114 4246 4862 5018 6292 6562 8228 8492 9724 10036 12584 13124 16456 16984 19448 20072 23353 25168 26248 26741 27599 32912 33968 36091 38896 40144 42653 46706 52496 53482 55198 72182 85306 93412 106964 110396 144364 170612 186824 213928 220792 288728 303589 341224 373648 397001 427856 441584 469183 577456 607178 682448 794002 938366 1214356 1588004 1876732 2428712 3176008 3753464 4857424 5161013 6352016 7506928 10322026 20644052 41288104 82576208