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85755488 = 257313601
BaseRepresentation
bin1010001110010…
…00011001100000
312222100211102012
411013020121200
5133423133423
612302012052
72060624000
oct507103140
9188324365
1085755488
1144452405
1224877028
13149c6cc0
14b564000
1577de078
hex51c8660

85755488 has 96 divisors (see below), whose sum is σ = 212385600. Its totient is φ = 33868800.

The previous prime is 85755457. The next prime is 85755491. The reversal of 85755488 is 88455758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142388 + ... + 142988.

It is an arithmetic number, because the mean of its divisors is an integer number (2212350).

Almost surely, 285755488 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 85755488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106192800).

85755488 is an abundant number, since it is smaller than the sum of its proper divisors (126630112).

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

85755488 is a wasteful number, since it uses less digits than its factorization.

85755488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 623 counting only the distinct ones).

The product of its digits is 1792000, while the sum is 50.

The square root of 85755488 is about 9260.4259081319. The cubic root of 85755488 is about 440.9817746730.

It can be divided in two parts, 8575 and 5488, that multiplied together give a square (47059600 = 68602).

The spelling of 85755488 in words is "eighty-five million, seven hundred fifty-five thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 49 52 56 91 98 104 112 182 196 208 224 343 364 392 416 601 637 686 728 784 1202 1274 1372 1456 1568 2404 2548 2744 2912 4207 4459 4808 5096 5488 7813 8414 8918 9616 10192 10976 15626 16828 17836 19232 20384 29449 31252 33656 35672 54691 58898 62504 67312 71344 109382 117796 125008 134624 142688 206143 218764 235592 250016 382837 412286 437528 471184 765674 824572 875056 942368 1531348 1649144 1750112 2679859 3062696 3298288 5359718 6125392 6596576 10719436 12250784 21438872 42877744 85755488