85707981 is an odd 8-digits composite number following 85707980
and preceding 85707982 . In scientific notation, it is written as 8.5707981 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 56989440 positive integers (up to 85707981) that are relatively prime to 85707981.
85707981 has 12 divisors, whose sum is 124123740
The reverse of 85707981 is 18970758
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-five million seven hundred seven thousand nine hundred eighty-one
Scientific notation
8.5707981 × 10^7
Engineering notation
8.5707981 × 10^6
Prime Factorization
3 × 3 × 389 × 24481
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28569327
Product of the distinct prime numbers
The prime factorization of 85707981 is 3 × 3 × 389 × 24481.
Since it has a total of 4 prime factors.
5 , 6 , 39 , 25 , 842 , 312 , 2729 , 8870 , 18333 , 43654 , 547898 , 555223 , 518524 , 2325402 , 34707919 , 81841574 , 654962022 , 239115895 , 6326679180 , 8794874124
n×2
171415962
n×3
257123943
n×4
342831924
n×5
428539905
n÷2
42853990.5
n÷3
28569327
n÷3
21426995.25
n÷5
17141596.2
n2
7345858007096361
n3
6.2959865850091E+23
n4
5.3961629860422E+31
n5
4.6249423468061E+39
2 √n
9257.8604979768
3 √n
440.90032763705
4 √n
96.217776413596
5 √n
38.601506387182
1 , 3 , 9 , 389 , 1167 , 3501 , 24481 , 73443 , 220329 , 9523109 , 28569327 , 85707981
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85707980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85707981 can be divided by 12 positive divisors.
The sum of these divisors (counting 85707981) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101000110111100110011001101
3
Ternary
12222021102020200
4
Quaternary
11012330303031
5
Quinary
133420123411
6
Senary
12301004113
8
Octal
506746315
10
Decimal
85707981
12
Duodecimal
24853639
16
Hexadecimal
51bcccd
20
Vigesimal
16fd9j1
36
Base36
1f10p9
md5
fa90d0eb5b4b9c1822135796cc52083c
sha1
9911025872a1f487e3088ebb1216881f81c73c69
sha256
747dd321e2bb46ff5f3189178afeae5a8bba94bb53b816da1b0a06e7feb3a23b
sha512
1c86e444793714911f29f8758fb42810879f550ba49a1a273e21cc67ed172b43a9ae98a933d68f9d918048bcdf056b8afc1169562d287e284f0cd03ad0310a65
ripemd-160
22ecf75cae17dab3589b9de2b4d77bc536e2ff7d
Diameter
171415962
Circumference
538519126.92723
Area
2.3077693549408E+16
Volume
2.6372566936753E+24
Surface area
9.2310774197631E+16
Circumference
538519126.92723
Perimeter
342831924
Area
7345858007096361
Diagonal
121209389.13382
Surface area
44075148042578166
Volume
6.2959865850091E+23
Space diagonal
148450577.70615
Perimeter
257123943
Area
3.1808498233694E+15
Altitude
74225288.853074
Surface area
3.1808498233694E+15
Volume
7.4198913475325E+22
Height
40403129.711272