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82164324 = 22311271797
BaseRepresentation
bin1001110010110…
…11101001100100
312201121101021010
410321123221210
5132013224244
612053022220
72015246064
oct471335144
9181541233
1082164324
114241a300
1223624970
131403a558
14acab3a4
15732eeb9
hex4e5ba64

82164324 has 72 divisors (see below), whose sum is σ = 213966144. Its totient is φ = 24516800.

The previous prime is 82164317. The next prime is 82164343. The reversal of 82164324 is 42346128.

It is a super-2 number, since 2×821643242 = 13501952276753952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82164291 and 82164300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102694 + ... + 103490.

It is an arithmetic number, because the mean of its divisors is an integer number (2971752).

Almost surely, 282164324 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 82164324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106983072).

82164324 is an abundant number, since it is smaller than the sum of its proper divisors (131801820).

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

82164324 is a wasteful number, since it uses less digits than its factorization.

82164324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 884 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 82164324 is about 9064.4538721315. The cubic root of 82164324 is about 434.7381592397.

The spelling of 82164324 in words is "eighty-two million, one hundred sixty-four thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 71 121 132 142 213 242 284 363 426 484 726 781 797 852 1452 1562 1594 2343 2391 3124 3188 4686 4782 8591 8767 9372 9564 17182 17534 25773 26301 34364 35068 51546 52602 56587 96437 103092 105204 113174 169761 192874 226348 289311 339522 385748 578622 622457 679044 1157244 1244914 1867371 2489828 3734742 6847027 7469484 13694054 20541081 27388108 41082162 82164324