21093989 is an odd 8-digits composite number following 21093988
and preceding 21093990 . In scientific notation, it is written as 2.1093989 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 18080556 positive integers (up to 21093989) that are relatively prime to 21093989.
21093989 has 4 divisors, whose sum is 24107424
The reverse of 21093989 is 98939012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million ninety-three thousand nine hundred eighty-nine
Scientific notation
2.1093989 × 10^7
Engineering notation
2.1093989 × 10^6
Prime Factorization
7 × 3013427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21093989
Product of the distinct prime numbers
The prime factorization of 21093989 is 7 × 3013427.
Since it has a total of 2 prime factors.
5 , 2 , 40 , 99 , 292 , 522 , 8728 , 5932 , 46973 , 30811 , 722609 , 745628 , 4248611 , 9270185 , 87916949 , 37214739 , 701304157 , 252153501 , 3916740550 , 9793497405
n×2
42187978
n×3
63281967
n×4
84375956
n×5
105469945
n÷2
10546994.5
n÷3
7031329.6666667
n÷3
5273497.25
n÷5
4218797.8
n2
444956371932121
n3
9.3859048150161E+21
n4
1.97986172923E+29
n5
4.1763181537898E+36
2 √n
4592.8192866691
3 √n
276.30340593012
4 √n
67.770342235148
5 √n
29.162969459403
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
-21093988
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 21093989 can be divided by 4 positive divisors.
The sum of these divisors (counting 21093989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011101111001100101
3
Ternary
1110200200111212
4
Quaternary
1100131321211
5
Quinary
20400001424
6
Senary
2032041205
8
Octal
120357145
10
Decimal
21093989
12
Duodecimal
7093205
16
Hexadecimal
141de65
20
Vigesimal
6bgej9
36
Base36
ck485
md5
eb53285f78d8b46b7e959f636d3e7c82
sha1
0bb9bb58fecf16d7dbddfec7f42b07cfbedd6d16
sha256
4bea6867b3d8a3fb1c8ad1a178684f5a10dd95ca36d97d13e3c919db91e45572
sha512
4e988d7a8bf2e2bf9d5d492ceefc8966fcb0fea581bbec04805bd6036fd339e5575c856fe00baf255cb227eb485042c9bcffe575f4ccfb9cc7f9a7add537c5ec
ripemd-160
7e089d86e981104e3aa79e686e4e634bff345126
Diameter
42187978
Circumference
132537441.75461
Area
1.3978716692299E+15
Volume
3.9315586152197E+22
Surface area
5.5914866769197E+15
Circumference
132537441.75461
Perimeter
84375956
Area
444956371932121
Diagonal
29831405.328349
Surface area
2669738231592726
Volume
9.3859048150161E+21
Space diagonal
36535860.682299
Perimeter
63281967
Area
1.9267176083449E+14
Altitude
18267930.34115
Surface area
1.9267176083449E+14
Volume
1.1061394903782E+21
Height
9943801.7761163