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82365984 = 253443739
BaseRepresentation
bin1001110100011…
…00111000100000
312201222121220000
410322030320200
5132041202414
612101220000
72020046031
oct472147040
9181877800
1082365984
1142547868
1223701600
13140ab28c
14ad20a88
15736eb09
hex4e8ce20

82365984 has 120 divisors (see below), whose sum is σ = 248204880. Its totient is φ = 26780544.

The previous prime is 82365961. The next prime is 82365989. The reversal of 82365984 is 48956328.

It is not an unprimeable number, because it can be changed into a prime (82365989) 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 19 ways as a sum of consecutive naturals, for example, 111087 + ... + 111825.

It is an arithmetic number, because the mean of its divisors is an integer number (2068374).

Almost surely, 282365984 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 82365984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124102440).

82365984 is an abundant number, since it is smaller than the sum of its proper divisors (165838896).

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

82365984 is a wasteful number, since it uses less digits than its factorization.

82365984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 787 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 82365984 is about 9075.5707258552. The cubic root of 82365984 is about 435.0935351776.

The spelling of 82365984 in words is "eighty-two million, three hundred sixty-five thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 43 48 54 72 81 86 96 108 129 144 162 172 216 258 288 324 344 387 432 516 648 688 739 774 864 1032 1161 1296 1376 1478 1548 2064 2217 2322 2592 2956 3096 3483 4128 4434 4644 5912 6192 6651 6966 8868 9288 11824 12384 13302 13932 17736 18576 19953 23648 26604 27864 31777 35472 37152 39906 53208 55728 59859 63554 70944 79812 95331 106416 111456 119718 127108 159624 190662 212832 239436 254216 285993 319248 381324 478872 508432 571986 638496 762648 857979 957744 1016864 1143972 1525296 1715958 1915488 2287944 2573937 3050592 3431916 4575888 5147874 6863832 9151776 10295748 13727664 20591496 27455328 41182992 82365984