31208900 is an even 8-digits composite number following 31208899
and preceding 31208901 . In scientific notation, it is written as 3.1208900 × 10^7.
The sum of its digits is 23. It has a total of 5 prime factors and 18 positive divisors.
There are 12483520 positive integers (up to 31208900) that are relatively prime to 31208900.
31208900 has 18 divisors, whose sum is 67723530
The reverse of 31208900 is 00980213
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
thirty-one million two hundred eight thousand nine hundred
Scientific notation
3.1208900 × 10^7
Engineering notation
3.1208900 × 10^6
Prime Factorization
2 × 2 × 5 × 5 × 312089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3120890
Product of the distinct prime numbers
The prime factorization of 31208900 is 2 × 2 × 5 × 5 × 312089.
Since it has a total of 5 prime factors.
10 , 5 , 46 , 23 , 36 , 234 , 210 , 9396 , 79088 , 39287 , 237260 , 926372 , 474285 , 5199459 , 5590501 , 90827222 , 827154075 , 249793515 , 9319275842 , 1669902542
n×2
62417800
n×3
93626700
n×4
124835600
n×5
156044500
n÷2
15604450
n÷3
10402966.666667
n÷3
7802225
n÷5
6241780
n2
973995439210000
n3
3.0397326262761E+22
n4
9.4866711560188E+29
n5
2.9606857144108E+37
2 √n
5586.4926384987
3 √n
314.84211454489
4 √n
74.742843393188
5 √n
31.53956450397
1 , 2 , 4 , 5 , 10 , 20 , 25 , 50 , 100 , 312089 , 624178 , 1248356 , 1560445 , 3120890 , 6241780 , 7802225 , 15604450 , 31208900
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31208899
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31208900 can be divided by 18 positive divisors.
The sum of these divisors (counting 31208900) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1110111000011010111000100
3
Ternary
2011201120120012
4
Quaternary
1313003113010
5
Quinary
30442141100
6
Senary
3032525352
8
Octal
167032704
10
Decimal
31208900
12
Duodecimal
a550858
16
Hexadecimal
1dc35c4
20
Vigesimal
9f1250
36
Base36
ikwxw
md5
17a4bac47532fc96dd7a8944f621799d
sha1
62a800993b9e2ffc9ce08b4747055294634b016e
sha256
9832586fd21224dad74b5bfc6312268cff517561a5a69c0b105b0cde1414d445
sha512
e27542685f484eb8c39d4ed318b1eb0c6a7e8dfd79c3a92654a5f96d15edeadff195f4ab3f575a7004b7df09480d1084e99d2f296e7023cd3a68c7e305a097f0
ripemd-160
743612c5d3321e6800046d8d8800fc06386f7a0f
Diameter
62417800
Circumference
196091301.93324
Area
3.0598969164521E+15
Volume
1.2732802250115E+23
Surface area
1.2239587665808E+16
Circumference
196091301.93324
Perimeter
124835600
Area
973995439210000
Diagonal
44136049.646746
Surface area
5843972635260000
Volume
3.0397326262761E+22
Space diagonal
54055400.448336
Perimeter
93626700
Area
4.2175239676302E+14
Altitude
27027700.224168
Surface area
4.2175239676302E+14
Volume
3.5823592550564E+21
Height
14712016.548915