81876278 is an even 8-digits composite number following 81876277
and preceding 81876279 . In scientific notation, it is written as 8.1876278 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 36660360 positive integers (up to 81876278) that are relatively prime to 81876278.
81876278 has 16 divisors, whose sum is 135981504
The reverse of 81876278 is 87267818
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million eight hundred seventy-six thousand two hundred seventy-eight
Scientific notation
8.1876278 × 10^7
Engineering notation
8.1876278 × 10^6
Prime Factorization
2 × 11 × 67 × 55547
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81876278
Product of the distinct prime numbers
The prime factorization of 81876278 is 2 × 11 × 67 × 55547.
Since it has a total of 4 prime factors.
4 , 3 , 17 , 86 , 891 , 815 , 4031 , 2114 , 70771 , 9637 , 965696 , 420423 , 9799519 , 2008965 , 97132484 , 5683985 , 135700008 , 199272399 , 8135061569 , 7480719803
n×2
163752556
n×3
245628834
n×4
327505112
n×5
409381390
n÷2
40938139
n÷3
27292092.666667
n÷3
20469069.5
n÷5
16375255.6
n2
6703724899133284
n3
5.4887604347696E+23
n4
4.493992752326E+31
n5
3.6795139991943E+39
2 √n
9048.551154743
3 √n
434.22953943184
4 √n
95.123872685793
5 √n
38.250015755908
1 , 2 , 11 , 22 , 67 , 134 , 737 , 1474 , 55547 , 111094 , 611017 , 1222034 , 3721649 , 7443298 , 40938139 , 81876278
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81876277
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81876278 can be divided by 16 positive divisors.
The sum of these divisors (counting 81876278) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111000010101010100110110
3
Ternary
12201001202010202
4
Quaternary
10320111110312
5
Quinary
131430020103
6
Senary
12042520502
8
Octal
470252466
10
Decimal
81876278
12
Duodecimal
23506132
16
Hexadecimal
4e15536
20
Vigesimal
15beadi
36
Base36
1cqw52
md5
3b418b2ed345c9c004a1e8f7a49e4e03
sha1
130588eaf7491634310457d56e6a3edc72960179
sha256
3d4e34d154ae4fb2665c90afceae02c0b406b7c325c910396d0f5101e8d509e9
sha512
679e887177acb90646fdfa195108ac306ae430d71aacb86baae9740134c804b60dc9bc273bffcb95afb95379faa826d47171ebfcd09968338bcd031152ba22af
ripemd-160
305096881757e135ce38883657d81963b70c9da8
Diameter
163752556
Circumference
514443826.93615
Area
2.1060372894804E+16
Volume
2.2991265945582E+24
Surface area
8.4241491579216E+16
Circumference
514443826.93615
Perimeter
327505112
Area
6703724899133284
Diagonal
115790542.78423
Surface area
40222349394799704
Volume
5.4887604347696E+23
Space diagonal
141813873.43063
Perimeter
245628834
Area
2.9027980313158E+15
Altitude
70906936.715317
Surface area
2.9027980313158E+15
Volume
6.4685662062233E+22
Height
38596847.594743