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82425888 = 25322971139
BaseRepresentation
bin1001110100110…
…11100000100000
312202002200001200
410322123200200
5132100112023
612102401200
72020415466
oct472334040
9182080050
1082425888
1142588876
1223730200
13140cc61c
14ad38836
157382743
hex4e9b820

82425888 has 144 divisors (see below), whose sum is σ = 247665600. Its totient is φ = 25966080.

The previous prime is 82425887. The next prime is 82425901. The reversal of 82425888 is 88852428.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (82425887) 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 23 ways as a sum of consecutive naturals, for example, 592923 + ... + 593061.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 282425888 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 82425888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123832800).

82425888 is an abundant number, since it is smaller than the sum of its proper divisors (165239712).

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

82425888 is a wasteful number, since it uses less digits than its factorization.

82425888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 244 counting only the distinct ones).

The product of its digits is 327680, while the sum is 45.

The square root of 82425888 is about 9078.8704143192. The cubic root of 82425888 is about 435.1989894188.

The spelling of 82425888 in words is "eighty-two million, four hundred twenty-five thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 71 72 87 96 116 139 142 144 174 213 232 261 278 284 288 348 417 426 464 522 556 568 639 696 834 852 928 1044 1112 1136 1251 1278 1392 1668 1704 2059 2088 2224 2272 2502 2556 2784 3336 3408 4031 4118 4176 4448 5004 5112 6177 6672 6816 8062 8236 8352 9869 10008 10224 12093 12354 13344 16124 16472 18531 19738 20016 20448 24186 24708 29607 32248 32944 36279 37062 39476 40032 48372 49416 59214 64496 65888 72558 74124 78952 88821 96744 98832 118428 128992 145116 148248 157904 177642 193488 197664 236856 286201 290232 296496 315808 355284 386976 473712 572402 580464 592992 710568 858603 947424 1144804 1160928 1421136 1717206 2289608 2575809 2842272 3434412 4579216 5151618 6868824 9158432 10303236 13737648 20606472 27475296 41212944 82425888