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85921248 = 2537127859
BaseRepresentation
bin1010001111100…
…00110111100000
312222200020210110
411013300313200
5133443434443
612305331320
72062214160
oct507606740
9188606713
1085921248
11445559a6
1224936b40
1314a5459a
14b5a85a0
157823233
hex51f0de0

85921248 has 48 divisors (see below), whose sum is σ = 257765760. Its totient is φ = 24548736.

The previous prime is 85921193. The next prime is 85921271. The reversal of 85921248 is 84212958.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63258 + ... + 64601.

It is an arithmetic number, because the mean of its divisors is an integer number (5370120).

Almost surely, 285921248 is an apocalyptic number.

It is an amenable number.

85921248 is an abundant number, since it is smaller than the sum of its proper divisors (171844512).

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

85921248 is a wasteful number, since it uses less digits than its factorization.

85921248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127879 (or 127871 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 85921248 is about 9269.3714997296. The cubic root of 85921248 is about 441.2657218729.

The spelling of 85921248 in words is "eighty-five million, nine hundred twenty-one thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 127859 255718 383577 511436 767154 895013 1022872 1534308 1790026 2045744 2685039 3068616 3580052 4091488 5370078 6137232 7160104 10740156 12274464 14320208 21480312 28640416 42960624 85921248