31051921 is an odd 8-digits composite number following 31051920
and preceding 31051922 . In scientific notation, it is written as 3.1051921 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 30614500 positive integers (up to 31051921) that are relatively prime to 31051921.
31051921 has 4 divisors, whose sum is 31489344
The reverse of 31051921 is 12915013
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
thirty-one million fifty-one thousand nine hundred twenty-one
Scientific notation
3.1051921 × 10^7
Engineering notation
3.1051921 × 10^6
Prime Factorization
71 × 437351
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31051921
Product of the distinct prime numbers
The prime factorization of 31051921 is 71 × 437351.
Since it has a total of 2 prime factors.
7 , 7 , 34 , 96 , 468 , 817 , 7105 , 9478 , 83622 , 60424 , 753291 , 932258 , 4850826 , 8522798 , 4884497 , 281907 , 678240149 , 698693382 , 9127190316 , 5585274008
n×2
62103842
n×3
93155763
n×4
124207684
n×5
155259605
n÷2
15525960.5
n÷3
10350640.333333
n÷3
7762980.25
n÷5
6210384.2
n2
964221797790241
n3
2.9940939091461E+22
n4
9.2972367533384E+29
n5
2.8869706118296E+37
2 √n
5572.425055575
3 √n
314.31334765883
4 √n
74.648677520603
5 √n
31.507772028973
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
-31051920
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 31051921 can be divided by 4 positive divisors.
The sum of these divisors (counting 31051921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110011101000010010001
3
Ternary
2011102121020011
4
Quaternary
1312131002101
5
Quinary
30422130141
6
Senary
3025314521
8
Octal
166350221
10
Decimal
31051921
12
Duodecimal
a495a41
16
Hexadecimal
1d9d091
20
Vigesimal
9e19g1
36
Base36
ihjtd
md5
7984b8c6ba11fa51b29d7108b3d87fbc
sha1
ad92ae7319f262c7795f7adac24d9dfe7a3bb147
sha256
a215899dfd92984c930e8313fa3c732fd64f63c7e5764a60bffb52a3a49ea3f6
sha512
eae2b2f92d229a45bbe6f7eb36f4a66342e8ace8f7aedf3a599dbfb8e3ce218ee20a839c488fbd0c18d8ee5394b6e32353e7efe46e5dce1ca25b8589901f3828
ripemd-160
64dd307ce9b1421dc8030c6eb8d3217f0a199059
Diameter
62103842
Circumference
195104973.7869
Area
3.029192116369E+15
Volume
1.2541631238842E+23
Surface area
1.2116768465476E+16
Circumference
195104973.7869
Perimeter
124207684
Area
964221797790241
Diagonal
43914047.815938
Surface area
5785330786741446
Volume
2.9940939091461E+22
Space diagonal
53783504.844615
Perimeter
93155763
Area
4.1752028588453E+14
Altitude
26891752.422307
Surface area
4.1752028588453E+14
Volume
3.5285735111109E+21
Height
14638015.938646