21376989 is an odd 8-digits composite number following 21376988
and preceding 21376990 . In scientific notation, it is written as 2.1376989 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 14251320 positive integers (up to 21376989) that are relatively prime to 21376989.
21376989 has 4 divisors, whose sum is 23752220
The reverse of 21376989 is 98967312
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million three hundred seventy-six thousand nine hundred eighty-nine
Scientific notation
2.1376989 × 10^7
Engineering notation
2.1376989 × 10^6
Prime Factorization
9 × 2375221
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21376989
Product of the distinct prime numbers
The prime factorization of 21376989 is 9 × 2375221.
Since it has a total of 2 prime factors.
1 , 1 , 20 , 74 , 781 , 739 , 6756 , 1130 , 19135 , 15681 , 796172 , 198224 , 7402388 , 6928798 , 32390435 , 46342921 , 178881098 , 104148716 , 1306364769 , 5282536297
n×2
42753978
n×3
64130967
n×4
85507956
n×5
106884945
n÷2
10688494.5
n÷3
7125663
n÷3
5344247.25
n÷5
4275397.8
n2
456975658706121
n3
9.7687636294285E+21
n4
2.0882675264989E+29
n5
4.4640871943025E+36
2 √n
4623.5256028273
3 √n
277.53356302106
4 √n
67.996511696023
5 √n
29.240803799242
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
-21376988
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 21376989 can be divided by 4 positive divisors.
The sum of these divisors (counting 21376989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100010111111011101
3
Ternary
1111020001201100
4
Quaternary
1101202333131
5
Quinary
20433030424
6
Senary
2042103313
8
Octal
121427735
10
Decimal
21376989
12
Duodecimal
71aab39
16
Hexadecimal
1462fdd
20
Vigesimal
6dc299
36
Base36
cq6l9
md5
9cca796bf6a8722c79094984360f0998
sha1
c62e751eb05e634bdee7f66b383e1eeda2219781
sha256
bab0b9611792c3f47d2f3ed8840141f0383e50d1bbde78805e2960a8b9b6f20b
sha512
750d7d408517750a1f03bbdfe83dd3644fecd8d836a0430f7a2b4c692309eaf117e2c548e1e18db5cabffafd70661bf636f080db734e220cb6c3766679615483
ripemd-160
0f43ea218c62a2a7dd764cd415e8b5f1a69b48b6
Diameter
42753978
Circumference
134315583.19654
Area
1.4356313722605E+15
Volume
4.0919301403824E+22
Surface area
5.742525489042E+15
Circumference
134315583.19654
Perimeter
85507956
Area
456975658706121
Diagonal
30231627.7665
Surface area
2741853952236726
Volume
9.7687636294285E+21
Space diagonal
37026031.060841
Perimeter
64130967
Area
1.9787626467531E+14
Altitude
18513015.530421
Surface area
1.9787626467531E+14
Volume
1.1512598343629E+21
Height
10077209.2555