85191681 is an odd 8-digits composite number following 85191680
and preceding 85191682 . In scientific notation, it is written as 8.5191681 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 56794452 positive integers (up to 85191681) that are relatively prime to 85191681.
85191681 has 4 divisors, whose sum is 113588912
The reverse of 85191681 is 18619158
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-five million one hundred ninety-one thousand six hundred eighty-one
Scientific notation
8.5191681 × 10^7
Engineering notation
8.5191681 × 10^6
Prime Factorization
3 × 28397227
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
85191681
Product of the distinct prime numbers
The prime factorization of 85191681 is 3 × 28397227.
Since it has a total of 2 prime factors.
10 , 10 , 42 , 10 , 87 , 454 , 1319 , 1118 , 56095 , 79341 , 672997 , 428881 , 3336263 , 1192610 , 38236698 , 85354010 , 707820545 , 930666821 , 2623848001 , 9081360123
n×2
170383362
n×3
255575043
n×4
340766724
n×5
425958405
n÷2
42595840.5
n÷3
28397227
n÷3
21297920.25
n÷5
17038336.2
n2
7257622511605761
n3
6.1828906182714E+23
n4
5.2673084520967E+31
n5
4.4873086137962E+39
2 √n
9229.9339650942
3 √n
440.01322446479
4 √n
96.072545324324
5 √n
38.554887263515
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85191680
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85191681 can be divided by 4 positive divisors.
The sum of these divisors (counting 85191681) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000100111110110000000001
3
Ternary
12221022012000110
4
Quaternary
11010332300001
5
Quinary
133302113211
6
Senary
12241541533
8
Octal
504766001
10
Decimal
85191681
12
Duodecimal
246448a9
16
Hexadecimal
513ec01
20
Vigesimal
16c8j41
36
Base36
1epybl
md5
4f1bcd98ac0786a9bd52ed30ff2aedf5
sha1
11f0f87e2d469cb60b52fcdf11c7f7ce09fbf63b
sha256
fb2068db7c3e8ae386a0dafa687ae5a16bfa4719a6a43871a08e6277fad28db1
sha512
947b82f4fecd829509880369cb96059bf0701f6d05ceec960233411d239bcc6ad1d0c6a6f8d43af0292b1130ca6cad41c3dc12dffba68c7b6bf6c28dc47b4fd5
ripemd-160
fc6e549d48c285be9f22711c2dc3d4cc95605187
Diameter
170383362
Circumference
535275118.35313
Area
2.2800493564989E+16
Volume
2.5898831659081E+24
Surface area
9.1201974259954E+16
Circumference
535275118.35313
Perimeter
340766724
Area
7257622511605761
Diagonal
120479230.67156
Surface area
43545735069634566
Volume
6.1828906182714E+23
Space diagonal
147556319.8742
Perimeter
255575043
Area
3.1426427330642E+15
Altitude
73778159.9371
Surface area
3.1426427330642E+15
Volume
7.2866064725239E+22
Height
40159743.557187