21493091 is an odd 8-digits prime number following 21493090
and preceding 21493092 . In scientific notation, it is written as 2.1493091 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 21493090 positive integers (up to 21493091) that are relatively prime to 21493091.
21493091 has 2 divisors, whose sum is 21493092
The reverse of 21493091 is 19039412
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred ninety-three thousand ninety-one
Scientific notation
2.1493091 × 10^7
Engineering notation
2.1493091 × 10^6
Prime Factorization
21493091
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21493091
Product of the distinct prime numbers
The prime factorization of 21493091 is 21493091.
Since it has a total of 1 prime factors.
10 , 4 , 57 , 9 , 471 , 46 , 9341 , 74 , 16411 , 65039 , 35295 , 810093 , 4094536 , 5530273 , 40433615 , 36770833 , 51645945 , 148363141 , 8787386548 , 6087828060
n×2
42986182
n×3
64479273
n×4
85972364
n×5
107465455
n÷2
10746545.5
n÷3
7164363.6666667
n÷3
5373272.75
n÷5
4298618.2
n2
461952960734281
n3
9.9287970227813E+21
n4
2.1340053793117E+29
n5
4.5866371812035E+36
2 √n
4636.0641712556
3 √n
278.03509985883
4 √n
68.088649356964
5 √n
29.272497359113
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21493092
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10746546
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4636.0642791057
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999069468
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493091 can be divided by 2 positive divisors.
The sum of these divisors (counting 21493091) is 21493092, the average is 10746546.
Base
System
Value
2
Binary
1010001111111010101100011
3
Ternary
1111102221222102
4
Quaternary
1101333111203
5
Quinary
21000234331
6
Senary
2044401015
8
Octal
121772543
10
Decimal
21493091
12
Duodecimal
724616b
16
Hexadecimal
147f563
20
Vigesimal
6e6ceb
36
Base36
cso6b
md5
305a8a24e5f851efa446d4757ac15fe5
sha1
7513d7155a1fd54e73d0a1c787af371b8a603ede
sha256
7565a2742c68637e7247c326f12be25d5827e8b9011b7d6c37f0323367cd3b6c
sha512
1ff34d132a87ec5d711d995d9e4f818c2e494c48941835620bc5713cafd968ed38879d5b2b723ad0cda50ba905f72f2455a48c01f347110617e6eb6824210a5a
ripemd-160
6184d31d9c9c79024c4496e2ed33bafb996d48e8
Diameter
42986182
Circumference
135045073.57707
Area
1.4512680277469E+15
Volume
4.1589647714339E+22
Surface area
5.8050721109875E+15
Circumference
135045073.57707
Perimeter
85972364
Area
461952960734281
Diagonal
30395820.789519
Surface area
2771717764405686
Volume
9.9287970227813E+21
Space diagonal
37227125.623701
Perimeter
64479273
Area
2.0003149967466E+14
Altitude
18613562.811851
Surface area
2.0003149967466E+14
Volume
1.1701199506389E+21
Height
10131940.263173