38990987 is an odd 8-digits composite number following 38990986
and preceding 38990988 . In scientific notation, it is written as 3.8990987 × 10^7.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 32789952 positive integers (up to 38990987) that are relatively prime to 38990987.
38990987 has 8 divisors, whose sum is 45402336
The reverse of 38990987 is 78909983
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
thirty-eight million nine hundred ninety thousand nine hundred eighty-seven
Scientific notation
3.8990987 × 10^7
Engineering notation
3.8990987 × 10^6
Prime Factorization
7 × 53 × 105097
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
38990987
Product of the distinct prime numbers
The prime factorization of 38990987 is 7 × 53 × 105097.
Since it has a total of 3 prime factors.
5 , 8 , 11 , 44 , 890 , 938 , 6972 , 9588 , 11965 , 25247 , 642826 , 209375 , 7926329 , 9373749 , 84875369 , 84773047 , 588366524 , 102048953 , 8055209217 , 8269556210
n×2
77981974
n×3
116972961
n×4
155963948
n×5
194954935
n÷2
19495493.5
n÷3
12996995.666667
n÷3
9747746.75
n÷5
7798197.4
n2
1520297067234169
n3
5.9277883184666E+22
n4
2.3113031726408E+30
n5
9.0119991957497E+37
2 √n
6244.2763391765
3 √n
339.09501836673
4 √n
79.020733603128
5 √n
32.975610582654
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
-38990986
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 38990987 can be divided by 8 positive divisors.
The sum of these divisors (counting 38990987) is 1, the average is 0.125.
Base
System
Value
2
Binary
10010100101111010010001011
3
Ternary
2201100221120122
4
Quaternary
2110233102023
5
Quinary
34440202422
6
Senary
3511413455
8
Octal
224572213
10
Decimal
38990987
12
Duodecimal
1108428b
16
Hexadecimal
252f48b
20
Vigesimal
c3dh97
36
Base36
n7pmz
md5
b784b774af7931c046e441d31fa497ff
sha1
2f14cb7239f377813b5036f785a30e42d03c1ced
sha256
e6cd3d40e09dd13704b76f39bb3a27a357d48be6b730e0816ee99e979c95afed
sha512
e5dcd1481bd8feb05dcfb74fc73da5d33b835540558da7dfef7f15d7d8b326b45fdac792a41d61d91c6a2dd760e6021f4cab1bd2c77c0bbbc2114895eae901bb
ripemd-160
790620ba687586dbda01a5d7d8921d2086bdafcf
Diameter
77981974
Circumference
244987596.63083
Area
4.776154097697E+15
Volume
2.483026164444E+23
Surface area
1.9104616390788E+16
Circumference
244987596.63083
Perimeter
155963948
Area
1520297067234169
Diagonal
55141582.625713
Surface area
9121782403405014
Volume
5.9277883184666E+22
Space diagonal
67534370.521258
Perimeter
116972961
Area
6.5830794076188E+14
Altitude
33767185.260629
Surface area
6.5830794076188E+14
Volume
6.9859655290435E+21
Height
18380527.541904