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85075984 = 2474197191
BaseRepresentation
bin1010001001000…
…10100000010000
312221002022022101
411010202200100
5133234412414
612235250144
72052063640
oct504424020
9187068271
1085075984
1144028934
12245a9954
1314819926
14b428520
157707a74
hex5122810

85075984 has 80 divisors (see below), whose sum is σ = 195987456. Its totient is φ = 35020800.

The previous prime is 85075981. The next prime is 85075993. The reversal of 85075984 is 48957058.

It is not an unprimeable number, because it can be changed into a prime (85075981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445329 + ... + 445519.

Almost surely, 285075984 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 85075984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97993728).

85075984 is an abundant number, since it is smaller than the sum of its proper divisors (110911472).

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

85075984 is a wasteful number, since it uses less digits than its factorization.

85075984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 85075984 is about 9223.6643477525. The cubic root of 85075984 is about 439.8139433745.

The spelling of 85075984 in words is "eighty-five million, seventy-five thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 41 56 82 97 112 164 191 194 287 328 382 388 574 656 679 764 776 1148 1337 1358 1528 1552 2296 2674 2716 3056 3977 4592 5348 5432 7831 7954 10696 10864 15662 15908 18527 21392 27839 31324 31816 37054 54817 55678 62648 63632 74108 109634 111356 125296 129689 148216 219268 222712 259378 296432 438536 445424 518756 759607 877072 1037512 1519214 2075024 3038428 5317249 6076856 10634498 12153712 21268996 42537992 85075984