Search a number
-
+
82528128 = 2732711009
BaseRepresentation
bin1001110101101…
…00011110000000
312202021212022100
410322310132000
5132111400003
612104510400
72021322534
oct472643600
9182255270
1082528128
1142648671
122377b400
1314137017
14ad63bc4
1573a2ba3
hex4eb4780

82528128 has 96 divisors (see below), whose sum is σ = 241066800. Its totient is φ = 27095040.

The previous prime is 82528087. The next prime is 82528133. The reversal of 82528128 is 82182528.

It is a happy number.

82528128 is a `hidden beast` number, since 8 + 2 + 528 + 128 = 666.

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

It is a super-2 number, since 2×825281282 = 13621783822368768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 82528092 and 82528101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81288 + ... + 82296.

Almost surely, 282528128 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 82528128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120533400).

82528128 is an abundant number, since it is smaller than the sum of its proper divisors (158538672).

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

82528128 is a wasteful number, since it uses less digits than its factorization.

82528128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1085 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 82528128 is about 9084.4993257746. The cubic root of 82528128 is about 435.3788534620.

The spelling of 82528128 in words is "eighty-two million, five hundred twenty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 71 72 96 128 142 144 192 213 284 288 384 426 568 576 639 852 1009 1136 1152 1278 1704 2018 2272 2556 3027 3408 4036 4544 5112 6054 6816 8072 9081 9088 10224 12108 13632 16144 18162 20448 24216 27264 32288 36324 40896 48432 64576 71639 72648 81792 96864 129152 143278 145296 193728 214917 286556 290592 387456 429834 573112 581184 644751 859668 1146224 1162368 1289502 1719336 2292448 2579004 3438672 4584896 5158008 6877344 9169792 10316016 13754688 20632032 27509376 41264064 82528128