81970528 is an even 8-digits composite number following 81970527
and preceding 81970529 . In scientific notation, it is written as 8.1970528 × 10^7.
The sum of its digits is 40. It has a total of 7 prime factors and 24 positive divisors.
There are 39202944 positive integers (up to 81970528) that are relatively prime to 81970528.
81970528 has 24 divisors, whose sum is 168397488
The reverse of 81970528 is 82507918
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million nine hundred seventy thousand five hundred twenty-eight
Scientific notation
8.1970528 × 10^7
Engineering notation
8.1970528 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 23 × 111373
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
5123158
Product of the distinct prime numbers
The prime factorization of 81970528 is 2 × 2 × 2 × 2 × 2 × 23 × 111373.
Since it has a total of 7 prime factors.
4 , 10 , 25 , 95 , 700 , 997 , 7509 , 3909 , 46694 , 28762 , 257588 , 759912 , 6317695 , 234142 , 77493924 , 91995769 , 142074417 , 167048778 , 1114207563 , 5572475057
n×2
163941056
n×3
245911584
n×4
327882112
n×5
409852640
n÷2
40985264
n÷3
27323509.333333
n÷3
20492632
n÷5
16394105.6
n2
6719167460598784
n3
5.507737044657E+23
n4
4.514721136357E+31
n5
3.7007407531994E+39
2 √n
9053.7576729223
3 √n
434.39609333243
4 √n
95.151235792933
5 √n
38.258817829632
1 , 2 , 4 , 8 , 16 , 23 , 32 , 46 , 92 , 184 , 368 , 736 , 111373 , 222746 , 445492 , 890984 , 1781968 , 2561579 , 3563936 , 5123158 , 10246316 , 20492632 , 40985264 , 81970528
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81970527
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81970528 can be divided by 24 positive divisors.
The sum of these divisors (counting 81970528) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100111000101100010101100000
3
Ternary
12201020112102111
4
Quaternary
10320230111200
5
Quinary
131441024103
6
Senary
12044525104
8
Octal
470542540
10
Decimal
81970528
12
Duodecimal
23550794
16
Hexadecimal
4e2c560
20
Vigesimal
15c6668
36
Base36
1cswv4
md5
368a7aea89ab726ba0eb3bb6e84ba826
sha1
ad411d061c68f1e151e3420a8566fccec11990d0
sha256
f0956075b68b14c322f87f67fb839972259231838127576d946139984c9ee5f3
sha512
9f13a6b3e04710d2d841f4c75f39aa0affbd6025be9d9f728f4b24730711c11611d95356f454333e9f4618f440785344afcb6ccf252709cfe195a181d2e13a92
ripemd-160
6eee75dcbe80b56e1d42e747e672b9d2de9c387e
Diameter
163941056
Circumference
515036017.15135
Area
2.1108887132457E+16
Volume
2.3070754983198E+24
Surface area
8.4435548529827E+16
Circumference
515036017.15135
Perimeter
327882112
Area
6719167460598784
Diagonal
115923832.41248
Surface area
40315004763592704
Volume
5.507737044657E+23
Space diagonal
141977119.21925
Perimeter
245911584
Area
2.9094848565802E+15
Altitude
70988559.609624
Surface area
2.9094848565802E+15
Volume
6.4909303554489E+22
Height
38641277.470828