388966921 is an odd 9-digits composite number following 388966920
and preceding 388966922 . In scientific notation, it is written as 3.88966921 × 10^8.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 333400212 positive integers (up to 388966921) that are relatively prime to 388966921.
388966921 has 4 divisors, whose sum is 444533632
The reverse of 388966921 is 129669883
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 52
Digital Root 7
Name
three hundred eighty-eight million nine hundred sixty-six thousand nine hundred twenty-one
Scientific notation
3.88966921 × 10^8
Engineering notation
3.88966921 × 10^6
Prime Factorization
7 × 55566703
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
388966921
Product of the distinct prime numbers
The prime factorization of 388966921 is 7 × 55566703.
Since it has a total of 2 prime factors.
3 , 1 , 92 , 72 , 176 , 378 , 3661 , 4718 , 54014 , 60467 , 882414 , 536786 , 3547784 , 4466323 , 33690959 , 35400905 , 906897830 , 382908191 , 8336268543 , 3589237463
n×2
777933842
n×3
1166900763
n×4
1555867684
n×5
1944834605
n÷2
194483460.5
n÷3
129655640.33333
n÷3
97241730.25
n÷5
77793384.2
n2
151295265632220241
n3
5.8848853634842E+25
n4
2.2890257402724E+34
n5
8.903552942835E+42
2 √n
19722.244319549
3 √n
729.96867382931
4 √n
140.43590822703
5 √n
52.237518002164
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
-388966920
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 388966921 can be divided by 4 positive divisors.
The sum of these divisors (counting 388966921) is 1, the average is 0.25.
Base
System
Value
2
Binary
10111001011110010101000001001
3
Ternary
1000002220120022021
4
Quaternary
113023302220021
5
Quinary
1244033420141
6
Senary
102332524441
8
Octal
2713625011
10
Decimal
388966921
12
Duodecimal
aa320721
16
Hexadecimal
172f2a09
20
Vigesimal
61b0h61
36
Base36
6fkwsp
md5
bf0aec3e193887afb869aafa2be1475b
sha1
54445e81b61810a6df86a1ebfb33dcc225885723
sha256
56a6573f804946ea304d209dcbff20bc8c2669978383e35f4b37e6f485d881e8
sha512
7db20c9f89386bba959c5c7f774ec98eda8844fca8b45bb7cb66b7cb408406953b8a387a8f962b7713ea71b3309d740c120e65d30a5c4af32e29a8f977b58849
ripemd-160
61c148dcda41ccfe51d8bcc408e61dba49a7e993
Diameter
777933842
Circumference
2443951243.0061
Area
4.753080950331E+17
Volume
2.4650550166853E+26
Surface area
1.9012323801324E+18
Circumference
2443951243.0061
Perimeter
1555867684
Area
151295265632220241
Diagonal
550082294.9927
Surface area
907771593793321446
Volume
5.8848853634842E+25
Space diagonal
673710469.63563
Perimeter
1166900763
Area
6.5512771754909E+16
Altitude
336855234.81781
Surface area
6.5512771754909E+16
Volume
6.9354039117085E+24
Height
183360764.99757