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82394208 = 25321359373
BaseRepresentation
bin1001110100100…
…11110001100000
312202001001121100
410322103301200
5132043103313
612101554400
72020224231
oct472236140
9182031540
1082394208
1142566a96
1223715a00
13140bb090
14ad2b088
157378173
hex4e93c60

82394208 has 144 divisors (see below), whose sum is σ = 257297040. Its totient is φ = 24855552.

The previous prime is 82394201. The next prime is 82394233. The reversal of 82394208 is 80249328.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82394201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220710 + ... + 221082.

It is an arithmetic number, because the mean of its divisors is an integer number (1786785).

Almost surely, 282394208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82394208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128648520).

82394208 is an abundant number, since it is smaller than the sum of its proper divisors (174902832).

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

82394208 is a wasteful number, since it uses less digits than its factorization.

82394208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 82394208 is about 9077.1255362036. The cubic root of 82394208 is about 435.1432267168.

The spelling of 82394208 in words is "eighty-two million, three hundred ninety-four thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 59 72 78 96 104 117 118 144 156 177 208 234 236 288 312 354 373 416 468 472 531 624 708 746 767 936 944 1062 1119 1248 1416 1492 1534 1872 1888 2124 2238 2301 2832 2984 3068 3357 3744 4248 4476 4602 4849 5664 5968 6136 6714 6903 8496 8952 9204 9698 11936 12272 13428 13806 14547 16992 17904 18408 19396 22007 24544 26856 27612 29094 35808 36816 38792 43641 44014 53712 55224 58188 66021 73632 77584 87282 88028 107424 110448 116376 132042 155168 174564 176056 198063 220896 232752 264084 286091 349128 352112 396126 465504 528168 572182 698256 704224 792252 858273 1056336 1144364 1396512 1584504 1716546 2112672 2288728 2574819 3169008 3433092 4577456 5149638 6338016 6866184 9154912 10299276 13732368 20598552 27464736 41197104 82394208