87923981 is an odd 8-digits composite number following 87923980
and preceding 87923982 . In scientific notation, it is written as 8.7923981 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 86053212 positive integers (up to 87923981) that are relatively prime to 87923981.
87923981 has 4 divisors, whose sum is 89794752
The reverse of 87923981 is 18932978
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-seven million nine hundred twenty-three thousand nine hundred eighty-one
Scientific notation
8.7923981 × 10^7
Engineering notation
8.7923981 × 10^6
Prime Factorization
47 × 1870723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87923981
Product of the distinct prime numbers
The prime factorization of 87923981 is 47 × 1870723.
Since it has a total of 2 prime factors.
10 , 8 , 73 , 95 , 109 , 135 , 854 , 9727 , 16086 , 16035 , 890926 , 735389 , 3764496 , 7812321 , 82905390 , 73118378 , 24012526 , 769196990 , 2175124637 , 22643525
n×2
175847962
n×3
263771943
n×4
351695924
n×5
439619905
n÷2
43961990.5
n÷3
29307993.666667
n÷3
21980995.25
n÷5
17584796.2
n2
7730626434888361
n3
6.7970745177922E+23
n4
5.9762585075795E+31
n5
5.2545643947151E+39
2 √n
9376.7788179097
3 √n
444.66790186522
4 √n
96.833768995685
5 √n
38.799083661041
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
-87923980
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 87923981 can be divided by 4 positive divisors.
The sum of these divisors (counting 87923981) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001111011001110100001101
3
Ternary
20010110000000202
4
Quaternary
11033121310031
5
Quinary
140002031411
6
Senary
12420303245
8
Octal
517316415
10
Decimal
87923981
12
Duodecimal
25541b25
16
Hexadecimal
53d9d0d
20
Vigesimal
179a9j1
36
Base36
1gcikt
md5
b46861cc9f0051adf66f3fb8bd2f4a16
sha1
a2ae9c90131abc6f64b5987e653f9e6dd584006c
sha256
fa11dc9a0c7a30674406e078dbbc5f731a95ea9a858d5e4987e3260fce32d946
sha512
f268b6ed3d2320d4250951a8bc0e8af4952f6ece1435357f9ea1e5b6ae9c46768ada0d20c28f74c6d7c8db62c28d87f59f0db193da705a378e7194d6e17ba165
ripemd-160
9bd5d6992cf9586fb6f34f1e4ace846e61f3b595
Diameter
175847962
Circumference
552442665.56794
Area
2.4286479215492E+16
Volume
2.8471519161331E+24
Surface area
9.7145916861969E+16
Circumference
552442665.56794
Perimeter
351695924
Area
7730626434888361
Diagonal
124343286.38803
Surface area
46383758609330166
Volume
6.7970745177922E+23
Space diagonal
152288802.29572
Perimeter
263771943
Area
3.3474594398904E+15
Altitude
76144401.14786
Surface area
3.3474594398904E+15
Volume
8.0104291396019E+22
Height
41447762.129345