21802642 is an even 8-digits composite number following 21802641
and preceding 21802643 . In scientific notation, it is written as 2.1802642 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10669332 positive integers (up to 21802642) that are relatively prime to 21802642.
21802642 has 8 divisors, whose sum is 33399936
The reverse of 21802642 is 24620812
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eight hundred two thousand six hundred forty-two
Scientific notation
2.1802642 × 10^7
Engineering notation
2.1802642 × 10^6
Prime Factorization
2 × 47 × 231943
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21802642
Product of the distinct prime numbers
The prime factorization of 21802642 is 2 × 47 × 231943.
Since it has a total of 3 prime factors.
7 , 9 , 64 , 6 , 52 , 181 , 2764 , 3572 , 87419 , 22404 , 111829 , 986438 , 8643931 , 1069196 , 447044 , 56228586 , 468672167 , 236611255 , 6323168586 , 9978555834
n×2
43605284
n×3
65407926
n×4
87210568
n×5
109013210
n÷2
10901321
n÷3
7267547.3333333
n÷3
5450660.5
n÷5
4360528.4
n2
475355198180164
n3
1.0363999208761E+22
n4
2.259625644369E+29
n5
4.9265808978197E+36
2 √n
4669.3299305147
3 √n
279.36352881613
4 √n
68.332495421393
5 √n
29.35633430605
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21802641
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21802642 can be divided by 8 positive divisors.
The sum of these divisors (counting 21802642) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011001010111010010010
3
Ternary
1112000200121021
4
Quaternary
1103022322102
5
Quinary
21040141032
6
Senary
2055150054
8
Octal
123127222
10
Decimal
21802642
12
Duodecimal
737532a
16
Hexadecimal
14cae92
20
Vigesimal
6g56c2
36
Base36
czb0y
md5
1eac245816ea4c62597a9ca9c3d13592
sha1
fd6e785813373c1b143acdeef73198251190bf3e
sha256
18b89c83c539b6163a23a0bfdca2e763fa835054aeabc5ea42f253f303a51878
sha512
db5b181d2033d58fff1ac9519a8ceb5dfd7a06e219aef4c5683f6f3ae16a7d3bcf5bf6544e976245f0a44c0ba30af5bb27e59e015875456b83709c6dc35cb788
ripemd-160
fc765a37353e4a20480b771f6d44c9da05447397
Diameter
43605284
Circumference
136990039.8721
Area
1.4933723984485E+15
Volume
4.3412618368073E+22
Surface area
5.9734895937941E+15
Circumference
136990039.8721
Perimeter
87210568
Area
475355198180164
Diagonal
30833592.011965
Surface area
2852131189080984
Volume
1.0363999208761E+22
Space diagonal
37763283.683235
Perimeter
65407926
Area
2.058348387225E+14
Altitude
18881641.841618
Surface area
2.058348387225E+14
Volume
1.2214090201212E+21
Height
10277864.003988