85961981 is an odd 8-digits composite number following 85961980
and preceding 85961982 . In scientific notation, it is written as 8.5961981 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 72992448 positive integers (up to 85961981) that are relatively prime to 85961981.
85961981 has 8 divisors, whose sum is 99161280
The reverse of 85961981 is 18916958
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-five million nine hundred sixty-one thousand nine hundred eighty-one
Scientific notation
8.5961981 × 10^7
Engineering notation
8.5961981 × 10^6
Prime Factorization
7 × 107 × 114769
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
85961981
Product of the distinct prime numbers
The prime factorization of 85961981 is 7 × 107 × 114769.
Since it has a total of 3 prime factors.
2 , 10 , 97 , 18 , 30 , 629 , 3744 , 1852 , 42001 , 42350 , 895327 , 460744 , 3323287 , 5821850 , 23015616 , 83187706 , 718516694 , 63756025 , 8961086823 , 3221840026
n×2
171923962
n×3
257885943
n×4
343847924
n×5
429809905
n÷2
42980990.5
n÷3
28653993.666667
n÷3
21490495.25
n÷5
17192396.2
n2
7389462177444361
n3
6.3521280729769E+23
n4
5.4604151271881E+31
n5
4.6938810141545E+39
2 √n
9271.5684217936
3 √n
441.33544167437
4 √n
96.288983906746
5 √n
38.624358822489
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85961980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85961981 can be divided by 8 positive divisors.
The sum of these divisors (counting 85961981) is 1, the average is 0.125.
Base
System
Value
2
Binary
101000111111010110011111101
3
Ternary
12222202022200002
4
Quaternary
11013322303331
5
Quinary
134001240411
6
Senary
12310244045
8
Octal
507726375
10
Decimal
85961981
12
Duodecimal
24956625
16
Hexadecimal
51facfd
20
Vigesimal
16h54j1
36
Base36
1f6got
md5
a5f4392c1438355e4c83dc663c63675d
sha1
c9b91f615b481aa9d0e54b6f6a698472b46113fa
sha256
162edd6035c5c9b17973ad080e26711ba46d28bec570910155c8e494cb6c4fff
sha512
1a63adfa8c9eb4298914d54054d550c92225c9bdce5f11decbc71f7576d4c53863bb9aaa33db5558952752de514992d9963ff54c9e6a7aed1961c0b70cffde32
ripemd-160
ac923ce33b956a91c6748d409e8604bda54d0406
Diameter
171923962
Circumference
540115055.99525
Area
2.3214680090639E+16
Volume
2.6607731851634E+24
Surface area
9.2858720362555E+16
Circumference
540115055.99525
Perimeter
343847924
Area
7389462177444361
Diagonal
121568599.37866
Surface area
44336773064666166
Volume
6.3521280729769E+23
Space diagonal
148890518.61127
Perimeter
257885943
Area
3.1997309829855E+15
Altitude
74445259.305635
Surface area
3.1997309829855E+15
Volume
7.4860547256123E+22
Height
40522866.459553