21001954 is an even 8-digits composite number following 21001953
and preceding 21001955 . In scientific notation, it is written as 2.1001954 × 10^7.
The sum of its digits is 22. It has a total of 5 prime factors and 32 positive divisors.
There are 9580032 positive integers (up to 21001954) that are relatively prime to 21001954.
21001954 has 32 divisors, whose sum is 34418880
The reverse of 21001954 is 45910012
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million one thousand nine hundred fifty-four
Scientific notation
2.1001954 × 10^7
Engineering notation
2.1001954 × 10^6
Prime Factorization
2 × 67 × 19 × 73 × 113
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21001954
Product of the distinct prime numbers
The prime factorization of 21001954 is 2 × 67 × 19 × 73 × 113.
Since it has a total of 5 prime factors.
2 , 9 , 14 , 1 , 440 , 206 , 4166 , 1845 , 71066 , 17944 , 18465 , 808301 , 1173150 , 6825042 , 68693201 , 68874361 , 461416483 , 261574794 , 6977869362 , 2401093400
n×2
42003908
n×3
63005862
n×4
84007816
n×5
105009770
n÷2
10500977
n÷3
7000651.3333333
n÷3
5250488.5
n÷5
4200390.8
n2
441082071818116
n3
9.2635853825488E+21
n4
1.9455339407936E+29
n5
4.0860014329986E+36
2 √n
4582.7888888754
3 √n
275.90097441691
4 √n
67.69629893041
5 √n
29.13747679006
1 , 2 , 19 , 38 , 67 , 73 , 113 , 134 , 146 , 226 , 1273 , 1387 , 2147 , 2546 , 2774 , 4294 , 4891 , 7571 , 8249 , 9782 , 15142 , 16498 , 92929 , 143849 , 156731 , 185858 , 287698 , 313462 , 552683 , 1105366 , 10500977 , 21001954
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21001953
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21001954 can be divided by 32 positive divisors.
The sum of these divisors (counting 21001954) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000111011011100010
3
Ternary
1110112000021011
4
Quaternary
1100013123202
5
Quinary
20334030304
6
Senary
2030051134
8
Octal
120073342
10
Decimal
21001954
12
Duodecimal
7049aaa
16
Hexadecimal
14076e2
20
Vigesimal
6b54he
36
Base36
ci57m
md5
4931260200cf4ba337fb103e260cf9fd
sha1
fc09a0eb537cc92156136f4509f02d95c1a69f15
sha256
7b61de23ee8c4635e526db0a9740336e18bdef440e725f1971427cf2125ef83e
sha512
9e508485d3e304a829110f33764326dc4e7cea22425eb68683c3b4de327b4864cfa0d6f39c36aa1946751f4e4fbcc367322a4a6f5c3f2b115cb54dd4494628e1
ripemd-160
f81c3857d8700bd5e5de626116c40a2278b9a552
Diameter
42003908
Circumference
131959168.79486
Area
1.385700196454E+15
Volume
3.8803215711623E+22
Surface area
5.5428007858158E+15
Circumference
131959168.79486
Perimeter
84007816
Area
441082071818116
Diagonal
29701248.183136
Surface area
2646492430908696
Volume
9.2635853825488E+21
Space diagonal
36376451.386224
Perimeter
63005862
Area
1.9099413967418E+14
Altitude
18188225.693112
Surface area
1.9099413967418E+14
Volume
1.0917240070168E+21
Height
9900416.0610453