21402045 is an odd 8-digits composite number following 21402044
and preceding 21402046 . In scientific notation, it is written as 2.1402045 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 9783648 positive integers (up to 21402045) that are relatively prime to 21402045.
21402045 has 16 divisors, whose sum is 32613120
The reverse of 21402045 is 54020412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million four hundred two thousand forty-five
Scientific notation
2.1402045 × 10^7
Engineering notation
2.1402045 × 10^6
Prime Factorization
9 × 5 × 7 × 67943
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21402045
Product of the distinct prime numbers
The prime factorization of 21402045 is 9 × 5 × 7 × 67943.
Since it has a total of 4 prime factors.
3 , 8 , 22 , 86 , 154 , 11 , 1181 , 5328 , 54908 , 96356 , 303808 , 170886 , 9438088 , 895384 , 12854332 , 79671929 , 700449831 , 458806011 , 4602306323 , 9773116027
n×2
42804090
n×3
64206135
n×4
85608180
n×5
107010225
n÷2
10701022.5
n÷3
7134015
n÷3
5350511.25
n÷5
4280409
n2
458047530182025
n3
9.8031538530946E+21
n4
2.0980753990585E+29
n5
4.4903104104044E+36
2 √n
4626.2344298576
3 √n
277.64195318205
4 √n
68.016427646986
5 √n
29.247655225528
1 , 5 , 7 , 9 , 35 , 45 , 63 , 315 , 67943 , 339715 , 475601 , 611487 , 2378005 , 3057435 , 4280409 , 21402045
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21402044
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21402045 can be divided by 16 positive divisors.
The sum of these divisors (counting 21402045) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001101001000110111101
3
Ternary
1111021100002100
4
Quaternary
1101221012331
5
Quinary
20434331140
6
Senary
2042415313
8
Octal
121510675
10
Decimal
21402045
12
Duodecimal
7201539
16
Hexadecimal
14691bd
20
Vigesimal
6df525
36
Base36
cqpx9
md5
2924e7d13c477df54af74c33046eb6e7
sha1
73e08922cf591f073031e2de6e2e1efadcd6a848
sha256
4e1bd8f76650d5ffd9c1158030cbf347e95b8f06388d31078c749932068b86c9
sha512
9ae3051525d7c221e4cbb7f0626b98247c29fbbeab9f41de46adc220349d3e47191395ea028fdd2fa96749d43f494d5acc848a8e203a84f3fd662ad88d6f36ec
ripemd-160
20b34bcb7687d68ddec4921244609298b2e5ecf4
Diameter
42804090
Circumference
134473014.6876
Area
1.4389987558148E+15
Volume
4.1063354835856E+22
Surface area
5.7559950232592E+15
Circumference
134473014.6876
Perimeter
85608180
Area
458047530182025
Diagonal
30267062.301519
Surface area
2748285181092150
Volume
9.8031538530946E+21
Space diagonal
37069429.325875
Perimeter
64206135
Area
1.9834039863918E+14
Altitude
18534714.662938
Surface area
1.9834039863918E+14
Volume
1.1553127610897E+21
Height
10089020.767173