2018040721 is an odd 10-digits composite number following 2018040720
and preceding 2018040722 . In scientific notation, it is written as 2.018040721 × 10^9.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 2002635700 positive integers (up to 2018040721) that are relatively prime to 2018040721.
2018040721 has 4 divisors, whose sum is 2033445744
The reverse of 2018040721 is 1270408102
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 25
Digital Root 7
Name
two billion eighteen million forty thousand seven hundred twenty-one
Scientific notation
2.018040721 × 10^9
Engineering notation
2.018040721 × 10^9
Prime Factorization
131 × 15404891
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2018040721
Product of the distinct prime numbers
The prime factorization of 2018040721 is 131 × 15404891.
Since it has a total of 2 prime factors.
3 , 4 , 10 , 87 , 946 , 247 , 2640 , 6745 , 6888 , 81012 , 738736 , 893901 , 9016193 , 6662873 , 91957202 , 43967691 , 366358867 , 860505565 , 1997414078 , 5682202963
n×2
4036081442
n×3
6054122163
n×4
8072162884
n×5
10090203605
n÷2
1009020360.5
n÷3
672680240.33333
n÷3
504510180.25
n÷5
403608144.2
n2
4072488351614199841
n3
8.2184473293556E+27
n4
1.6585161374033E+37
n5
3.3469531017156E+46
2 √n
44922.608127757
3 √n
1263.6980300071
4 √n
211.94954146626
5 √n
72.60825259753
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
-2018040720
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 2018040721 can be divided by 4 positive divisors.
The sum of these divisors (counting 2018040721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111000010010001101101110010001
3
Ternary
12012122022002102221
4
Quaternary
1320102031232101
5
Quinary
13113104300341
6
Senary
532125341041
8
Octal
17022155621
10
Decimal
2018040721
12
Duodecimal
483a07781
16
Hexadecimal
7848db91
20
Vigesimal
1bacf1g1
36
Base36
xdhm6p
md5
32ce1b09fe68a228ca75109e6921396f
sha1
b9242881b425f9343ba351c443e6222e69f191da
sha256
3fd98c02d1a9d4747e1e85af93b921b6b16387a7966a1d589bf74d22aae2011e
sha512
181ddc819fb7b0356e096a3a954d893198df202bf2ecb2ec21ccfe99b88f42b715ee626e7bc44d78a6accf3f013a63d456a0c8074e53568e4b820fef3e447bd6
ripemd-160
dad7ee033cebbc08cdb9b10e819d4f234195083f
Diameter
4036081442
Circumference
12679723807.477
Area
1.2794099487261E+19
Volume
3.4425351671758E+28
Surface area
5.1176397949045E+19
Circumference
12679723807.477
Perimeter
8072162884
Area
4072488351614199841
Diagonal
2853940557.0594
Surface area
2.4434930109685E+19
Volume
8.2184473293556E+27
Space diagonal
3495349060.5149
Perimeter
6054122163
Area
1.7634391845571E+18
Altitude
1747674530.2575
Surface area
1.7634391845571E+18
Volume
9.6855330623531E+26
Height
951313519.01979