21016918 is an even 8-digits composite number following 21016917
and preceding 21016919 . In scientific notation, it is written as 2.1016918 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 9700104 positive integers (up to 21016918) that are relatively prime to 21016918.
21016918 has 8 divisors, whose sum is 33950448
The reverse of 21016918 is 81961012
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million sixteen thousand nine hundred eighteen
Scientific notation
2.1016918 × 10^7
Engineering notation
2.1016918 × 10^6
Prime Factorization
2 × 13 × 808343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21016918
Product of the distinct prime numbers
The prime factorization of 21016918 is 2 × 13 × 808343.
Since it has a total of 3 prime factors.
5 , 5 , 54 , 8 , 889 , 961 , 2010 , 9379 , 94898 , 23023 , 471581 , 798583 , 4716987 , 8030483 , 69401377 , 41742472 , 459610358 , 242325326 , 6614727395 , 7551603882
n×2
42033836
n×3
63050754
n×4
84067672
n×5
105084590
n÷2
10508459
n÷3
7005639.3333333
n÷3
5254229.5
n÷5
4203383.6
n2
441710842218724
n3
9.2834005506219E+21
n4
1.9510846813357E+29
n5
4.1005786758689E+36
2 √n
4584.4212284649
3 √n
275.96648581367
4 √n
67.708354199943
5 √n
29.14162772755
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
-21016917
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 21016918 can be divided by 8 positive divisors.
The sum of these divisors (counting 21016918) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001011000101010110
3
Ternary
1110112202210101
4
Quaternary
1100023011112
5
Quinary
20340020133
6
Senary
2030244314
8
Octal
120130526
10
Decimal
21016918
12
Duodecimal
705669a
16
Hexadecimal
140b156
20
Vigesimal
6b725i
36
Base36
cigra
md5
0e1e49f10bb0483ff48cb199befae58d
sha1
966d8bcefde6f4b58199262a4928b822da6f8915
sha256
72533a9adb8c5bd0d0886a10955d5c438b3f9a42c67b8fb48dd8c61aba8fa26b
sha512
640b692123fd8685ea3e91b109b8f305b73e7cfcbffe25c8c8b57b9c85f021535ebfeb6052072b948a0f98705c376cbdcf3d9ec4671a19016809a8699eb78b7d
ripemd-160
f58e7baf51a16ba47cf04aaaa7f14f20a6aef723
Diameter
42033836
Circumference
132053190.3798
Area
1.3876755369253E+15
Volume
3.8886217293553E+22
Surface area
5.5507021477012E+15
Circumference
132053190.3798
Perimeter
84067672
Area
441710842218724
Diagonal
29722410.474883
Surface area
2650265053312344
Volume
9.2834005506219E+21
Space diagonal
36402369.794509
Perimeter
63050754
Area
1.9126640524422E+14
Altitude
18201184.897254
Surface area
1.9126640524422E+14
Volume
1.0940592469693E+21
Height
9907470.1582944