388621868 is an even 9-digits composite number following 388621867
and preceding 388621869 . In scientific notation, it is written as 3.88621868 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 193685520 positive integers (up to 388621868) that are relatively prime to 388621868.
388621868 has 12 divisors, whose sum is 682277232
The reverse of 388621868 is 868126883
Previous prime number is 311
Is Prime? no
Number parity even
Number length 9
Sum of Digits 50
Digital Root 5
Name
three hundred eighty-eight million six hundred twenty-one thousand eight hundred sixty-eight
Scientific notation
3.88621868 × 10^8
Engineering notation
3.88621868 × 10^6
Prime Factorization
2 × 2 × 311 × 312397
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
194310934
Product of the distinct prime numbers
The prime factorization of 388621868 is 2 × 2 × 311 × 312397.
Since it has a total of 4 prime factors.
2 , 3 , 76 , 59 , 408 , 463 , 5511 , 1249 , 28495 , 70838 , 830871 , 566553 , 4979567 , 9971384 , 52493328 , 646263 , 552811383 , 37743419 , 9861918012 , 7744191491
n×2
777243736
n×3
1165865604
n×4
1554487472
n×5
1943109340
n÷2
194310934
n÷3
129540622.66667
n÷3
97155467
n÷5
77724373.6
n2
151026956287809424
n3
5.8692377870923E+25
n4
2.280914152556E+34
n5
8.8641311871395E+42
2 √n
19713.494565906
3 √n
729.75275795547
4 √n
140.40475264714
5 √n
52.228246719374
1 , 2 , 4 , 311 , 622 , 1244 , 312397 , 624794 , 1249588 , 97155467 , 194310934 , 388621868
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
-388621867
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 388621868 can be divided by 12 positive divisors.
The sum of these divisors (counting 388621868) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10111001010011110011000101100
3
Ternary
1000002021000222112
4
Quaternary
113022132120230
5
Quinary
1243441344433
6
Senary
102321303152
8
Octal
2712363054
10
Decimal
388621868
12
Duodecimal
aa194ab8
16
Hexadecimal
1729e62c
20
Vigesimal
618hed8
36
Base36
6fdijw
md5
05ec1e0ad84ebdbec09b4866f6377e53
sha1
12d4feb0ddc2d6d51e89f61ca31e018fd77f6a61
sha256
93f93c35cbae27d88d64f1ed4a9858f040e059f671394d6230f04731ad667acf
sha512
9226d462fa21b3d44e364a5f184c97799e7e6f29df73b8f5fff5369b63ffcf6a5cf4dbf08073e98fb67c3956aee92f2da8b971158fa0163b3c65de7d6407e678
ripemd-160
5f0ea09900a7080e5f6358165675a4b5bb1a64eb
Diameter
777243736
Circumference
2441783211.0663
Area
4.7446517636781E+17
Volume
2.4585005752134E+26
Surface area
1.8978607054712E+18
Circumference
2441783211.0663
Perimeter
1554487472
Area
151026956287809424
Diagonal
549594316.36037
Surface area
906161737726856544
Volume
5.8692377870923E+25
Space diagonal
673112820.30833
Perimeter
1165865604
Area
6.5396590400742E+16
Altitude
336556410.15416
Surface area
6.5396590400742E+16
Volume
6.9169630660821E+24
Height
183198105.45346