398021221 is an odd 9-digits composite number following 398021220
and preceding 398021222 . In scientific notation, it is written as 3.98021221 × 10^8.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 344620800 positive integers (up to 398021221) that are relatively prime to 398021221.
398021221 has 16 divisors, whose sum is 455390208
The reverse of 398021221 is 122120893
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
three hundred ninety-eight million twenty-one thousand two hundred twenty-one
Scientific notation
3.98021221 × 10^8
Engineering notation
3.98021221 × 10^6
Prime Factorization
13 × 17 × 311 × 5791
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
398021221
Product of the distinct prime numbers
The prime factorization of 398021221 is 13 × 17 × 311 × 5791.
Since it has a total of 4 prime factors.
1 , 7 , 93 , 32 , 579 , 936 , 3415 , 5962 , 99675 , 78691 , 512803 , 594841 , 7710297 , 2233598 , 85048272 , 11569912 , 322072976 , 729350267 , 8210447496 , 9313736241
n×2
796042442
n×3
1194063663
n×4
1592084884
n×5
1990106105
n÷2
199010610.5
n÷3
132673740.33333
n÷3
99505305.25
n÷5
79604244.2
n2
158420892366330841
n3
6.3054877011557E+25
n4
2.5097179138145E+34
n5
9.98920988422E+42
2 √n
19950.469192478
3 √n
735.58931002763
4 √n
141.24612983186
5 √n
52.478479757697
1 , 13 , 17 , 221 , 311 , 4043 , 5287 , 5791 , 68731 , 75283 , 98447 , 1279811 , 1801001 , 23413013 , 30617017 , 398021221
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-398021220
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 398021221 can be divided by 16 positive divisors.
The sum of these divisors (counting 398021221) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10111101110010101001001100101
3
Ternary
1000201221120110201
4
Quaternary
113232111021211
5
Quinary
1303343134341
6
Senary
103254550501
8
Octal
2756251145
10
Decimal
398021221
12
Duodecimal
b1368431
16
Hexadecimal
17b95265
20
Vigesimal
647cd11
36
Base36
6kyz51
md5
d3a8b1a77f602dcc2694421bbc5ae7fa
sha1
ff83abd13599bbb80ce514e80f3ca9e66b705f6e
sha256
16f29489b77b734057b7fd306d116f0d55f253f83367e1d2f1bff75ff9364f64
sha512
2115bd8293ff52603fac2bd81314b2e7301937da88794118d0fc1701224bd503228cafbda2603dab51044ad028c2ba41276e5caab3e34f595ebc01bdc793fb22
ripemd-160
3f6f62f967afddb75c3a14c4d4269487818892e8
Diameter
796042442
Circumference
2500841087.7329
Area
4.976939116332E+17
Volume
2.6412365119002E+26
Surface area
1.9907756465328E+18
Circumference
2500841087.7329
Perimeter
1592084884
Area
158420892366330841
Diagonal
562887008.8505
Surface area
950525354197985046
Volume
6.3054877011557E+25
Space diagonal
689392977.2626
Perimeter
1194063663
Area
6.8598258639721E+16
Altitude
344696488.6313
Surface area
6.8598258639721E+16
Volume
7.4310885202926E+24
Height
187629002.95017