99687981 is an odd 8-digits composite number following 99687980
and preceding 99687982 . In scientific notation, it is written as 9.9687981 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 66458652 positive integers (up to 99687981) that are relatively prime to 99687981.
99687981 has 4 divisors, whose sum is 132917312
The reverse of 99687981 is 18978699
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
ninety-nine million six hundred eighty-seven thousand nine hundred eighty-one
Scientific notation
9.9687981 × 10^7
Engineering notation
9.9687981 × 10^6
Prime Factorization
3 × 33229327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
99687981
Product of the distinct prime numbers
The prime factorization of 99687981 is 3 × 33229327.
Since it has a total of 2 prime factors.
2 , 5 , 99 , 67 , 437 , 284 , 9220 , 1444 , 12414 , 89894 , 989564 , 187974 , 4557200 , 9450695 , 7022689 , 22269884 , 769730665 , 385470568 , 2670725207 , 4828340268
n×2
199375962
n×3
299063943
n×4
398751924
n×5
498439905
n÷2
49843990.5
n÷3
33229327
n÷3
24921995.25
n÷5
19937596.2
n2
9937693555856361
n3
9.9066860638003E+23
n4
9.8757753210109E+31
n5
9.844961025612E+39
2 √n
9984.3868614953
3 √n
463.67562575829
4 √n
99.921903812404
5 √n
39.785842590474
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
-99687980
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 99687981 can be divided by 4 positive divisors.
The sum of these divisors (counting 99687981) is 1, the average is 0.25.
Base
System
Value
2
Binary
101111100010001111000101101
3
Ternary
20221120200012110
4
Quaternary
11330101320231
5
Quinary
201010003411
6
Senary
13520354233
8
Octal
574217055
10
Decimal
99687981
12
Duodecimal
29475979
16
Hexadecimal
5f11e2d
20
Vigesimal
1b30jj1
36
Base36
1ncnql
md5
f34fb04e3c3ae8e8eaa5c3f8ea3de510
sha1
b7dc88d2b2775b263733d77e070471f824435d6c
sha256
44edbe71d3afa799146fc1af76038b4ed9fafa0d0b1aeb811b90110d808e001d
sha512
157db50c415b74328feb6346179baedbd10ee054408e3a177a266b0276c5cbf2673a4eb76ff025d10c223edb12f75922ed495ca9aa935ff1e8798e7842ecfc2c
ripemd-160
7e8f01c19554ebdc27150e3c2a333f3ab4e922fc
Diameter
199375962
Circumference
626358057.5216
Area
3.1220185068705E+16
Volume
4.1497029545941E+24
Surface area
1.2488074027482E+17
Circumference
626358057.5216
Perimeter
398751924
Area
9937693555856361
Diagonal
140980094.73579
Surface area
59626161335138166
Volume
9.9066860638003E+23
Space diagonal
172664647.99596
Perimeter
299063943
Area
4.3031475371983E+15
Altitude
86332323.99798
Surface area
4.3031475371983E+15
Volume
1.1675141491332E+23
Height
46993364.91193