31203921 is an odd 8-digits composite number following 31203920
and preceding 31203922 . In scientific notation, it is written as 3.1203921 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 17776848 positive integers (up to 31203921) that are relatively prime to 31203921.
31203921 has 16 divisors, whose sum is 47692800
The reverse of 31203921 is 12930213
Previous prime number is 359
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
thirty-one million two hundred three thousand nine hundred twenty-one
Scientific notation
3.1203921 × 10^7
Engineering notation
3.1203921 × 10^6
Prime Factorization
3 × 7 × 359 × 4139
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31203921
Product of the distinct prime numbers
The prime factorization of 31203921 is 3 × 7 × 359 × 4139.
Since it has a total of 4 prime factors.
6 , 4 , 70 , 67 , 683 , 394 , 5461 , 5597 , 42637 , 30921 , 465478 , 538505 , 7018672 , 8389554 , 77096274 , 82174476 , 773920003 , 895617779 , 5619570449 , 2758456803
n×2
62407842
n×3
93611763
n×4
124815684
n×5
156019605
n÷2
15601960.5
n÷3
10401307
n÷3
7800980.25
n÷5
6240784.2
n2
973684685774241
n3
3.0382780013809E+22
n4
9.4806186731128E+29
n5
2.9583247610694E+37
2 √n
5586.0469922835
3 √n
314.82537057912
4 √n
74.739862137172
5 √n
31.538558089045
1 , 3 , 7 , 21 , 359 , 1077 , 2513 , 4139 , 7539 , 12417 , 28973 , 86919 , 1485901 , 4457703 , 10401307 , 31203921
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
-31203920
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 31203921 can be divided by 16 positive divisors.
The sum of these divisors (counting 31203921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000010001001010001
3
Ternary
2011201022201210
4
Quaternary
1313002021101
5
Quinary
30442011141
6
Senary
3032450333
8
Octal
167021121
10
Decimal
31203921
12
Duodecimal
a5499a9
16
Hexadecimal
1dc2251
20
Vigesimal
9f09g1
36
Base36
ikt3l
md5
52e0f461278353849f95c9ab945b74b7
sha1
5e3b6dd6d89403071bd678f9dd0f3971f41317d3
sha256
287383d697742367ad35ae0fad972fa14dedbe61e88fa4a121ce850d4eee1fc4
sha512
aadcd814db08f0be19831785e644934449ef043b132085dce307bf0ebc2e71e2b28dea69bd6b6b9dc47666a2854bf2cc11892e0bfaa50155b875242f18022d77
ripemd-160
63da0c96bdedb07337adbd2966a80d5e43ee806a
Diameter
62407842
Circumference
196060017.95359
Area
3.0589206557412E+15
Volume
1.2726709131602E+23
Surface area
1.2235682622965E+16
Circumference
196060017.95359
Perimeter
124815684
Area
973684685774241
Diagonal
44129008.277419
Surface area
5842108114645446
Volume
3.0382780013809E+22
Space diagonal
54046776.567365
Perimeter
93611763
Area
4.2161783657818E+14
Altitude
27023388.283683
Surface area
4.2161783657818E+14
Volume
3.5806449631773E+21
Height
14709669.425806