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85081928448 = 2831131193229
BaseRepresentation
bin100111100111101000…
…1110011001100000000
322010121111122210021010
41033033101303030000
52343221433202243
6103030333000520
76101260313346
oct1171721631400
9263544583233
1085081928448
11330a0592150
12145a5923140
13803bc4a77a
144191a85996
15232e70a433
hex13cf473300

85081928448 has 144 divisors (see below), whose sum is σ = 247183372800. Its totient is φ = 25766154240.

The previous prime is 85081928441. The next prime is 85081928473. The reversal of 85081928448 is 84482918058.

It is not an unprimeable number, because it can be changed into a prime (85081928441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26347698 + ... + 26350926.

It is an arithmetic number, because the mean of its divisors is an integer number (1716551200).

Almost surely, 285081928448 is an apocalyptic number.

85081928448 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 85081928448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123591686400).

85081928448 is an abundant number, since it is smaller than the sum of its proper divisors (162101444352).

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

85081928448 is a wasteful number, since it uses less digits than its factorization.

85081928448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378 (or 6364 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 57.

The spelling of 85081928448 in words is "eighty-five billion, eighty-one million, nine hundred twenty-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 528 704 768 1056 1408 2112 2816 3119 3229 4224 6238 6458 8448 9357 9687 12476 12916 18714 19374 24952 25832 34309 35519 37428 38748 49904 51664 68618 71038 74856 77496 99808 102927 103328 106557 137236 142076 149712 154992 199616 205854 206656 213114 274472 284152 299424 309984 399232 411708 413312 426228 548944 568304 598848 619968 798464 823416 826624 852456 1097888 1136608 1197696 1239936 1646832 1704912 2195776 2273216 2395392 2479872 3293664 3409824 4391552 4546432 6587328 6819648 8783104 9092864 10071251 13174656 13639296 20142502 26349312 27278592 30213753 40285004 60427506 80570008 110783761 120855012 161140016 221567522 241710024 322280032 332351283 443135044 483420048 644560064 664702566 886270088 966840096 1289120128 1329405132 1772540176 1933680192 2578240256 2658810264 3545080352 3867360384 5317620528 7090160704 7734720768 10635241056 14180321408 21270482112 28360642816 42540964224 85081928448