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82544928 = 25317371367
BaseRepresentation
bin1001110101110…
…00100100100000
312202022201100120
410322320210200
5132112414203
612105120240
72021422524
oct472704440
9182281316
1082544928
114265a254
1223789080
131414186b
14ad69d84
1573a7b53
hex4eb8920

82544928 has 96 divisors (see below), whose sum is σ = 235799424. Its totient is φ = 25178112.

The previous prime is 82544897. The next prime is 82544929. The reversal of 82544928 is 82944528.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 82544928.

It is not an unprimeable number, because it can be changed into a prime (82544929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59701 + ... + 61067.

It is an arithmetic number, because the mean of its divisors is an integer number (2456244).

Almost surely, 282544928 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 82544928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117899712).

82544928 is an abundant number, since it is smaller than the sum of its proper divisors (153254496).

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

82544928 is a wasteful number, since it uses less digits than its factorization.

82544928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1426 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 82544928 is about 9085.4239306705. The cubic root of 82544928 is about 435.4083943739.

It can be divided in two parts, 825 and 44928, that added together give a triangular number (45753 = T302).

The spelling of 82544928 in words is "eighty-two million, five hundred forty-four thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 37 48 51 68 74 96 102 111 136 148 204 222 272 296 408 444 544 592 629 816 888 1184 1258 1367 1632 1776 1887 2516 2734 3552 3774 4101 5032 5468 7548 8202 10064 10936 15096 16404 20128 21872 23239 30192 32808 43744 46478 50579 60384 65616 69717 92956 101158 131232 139434 151737 185912 202316 278868 303474 371824 404632 557736 606948 743648 809264 859843 1115472 1213896 1618528 1719686 2230944 2427792 2579529 3439372 4855584 5159058 6878744 10318116 13757488 20636232 27514976 41272464 82544928