390805988 is an even 9-digits composite number following 390805987
and preceding 390805989 . In scientific notation, it is written as 3.90805988 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 190121760 positive integers (up to 390805988) that are relatively prime to 390805988.
390805988 has 12 divisors, whose sum is 702394812
The reverse of 390805988 is 889508093
Previous prime number is 37
Is Prime? no Number parity even Number length 9 Sum of Digits 50 Digital Root 5
Name
three hundred ninety million eight hundred five thousand nine hundred eighty-eight
Scientific notation
3.90805988 × 10^8
Engineering notation
3.90805988 × 10^6
Prime Factorization
2 × 2 × 37 × 2640581
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
195402994 Product of the distinct prime numbers
The prime factorization of 390805988 is 2 × 2 × 37 × 2640581.
Since it has a total of 4 prime factors.
9 , 4 , 28 , 46 , 434 , 166 , 2510 , 5319 , 84990 , 32751 , 884739 , 501050 , 2417950 , 5759612 , 71777349 , 22428773 , 707698957 , 72261395 , 2219877747 , 3709550821
n×2
781611976
n×3
1172417964
n×4
1563223952
n×5
1954029940
n÷2
195402994
n÷3
130268662.66667
n÷3
97701497
n÷5
78161197.6
n2
152729320256656144
n3
5.9687532899471E+25
n4
2.332624526606E+34
n5
9.116036327533E+42
2 √n19768.81352029
3 √n731.11731570741
4 √n140.60161279406
5 √n52.286821486137
1 , 2 , 4 , 37 , 74 , 148 , 2640581 , 5281162 , 10562324 , 97701497 , 195402994 , 390805988
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
-390805987 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 390805988 can be divided by 12 positive divisors.
The sum of these divisors (counting 390805988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10111010010110011100111100100
3
Ternary
1000020101000000212
4
Quaternary
113102303213210
5
Quinary
1300021242423
6
Senary
102440154552
8
Octal
2722634744
10
Decimal
390805988
12
Duodecimal
aaa68a58
16
Hexadecimal
174b39e4
20
Vigesimal
622aej8
36
Base36
6gobtw
md5
b0e0bbcae59f69e6d6f6d1091a0c6fb5
sha1
df4c7846c05f1160da75d8666c24ba908c9567c1
sha256
ddf0174b850558aca9665235b18551e46097067f2193a04d5479bd721122ed5f
sha512
03232bdf8bfe0dfd392960bf3d4b6d845b2d6a3e0a0d3144a1d26b4c631734f648961cae8713a71e0f6ec58f86d2608acefdfbe5fb6191c6ce31a60e12f543fa
ripemd-160
61890c9798e03185195f25698078219c11704644
Diameter
781611976
Circumference
2455506441.7594
Area
4.7981331050607E+17
Volume
2.5001855315717E+26
Surface area
1.9192532420243E+18
Circumference
2455506441.7594
Perimeter
1563223952
Area
152729320256656144
Diagonal
552683128.48622
Surface area
916375921539936864
Volume
5.9687532899471E+25
Space diagonal
676895827.11815
Perimeter
1172417964
Area
6.6133735622497E+16
Altitude
338447913.55908
Surface area
6.6133735622497E+16
Volume
7.0342432109185E+24
Height
184227709.49541