21356790 is an even 8-digits composite number following 21356789
and preceding 21356791 . In scientific notation, it is written as 2.1356790 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 4505472 positive integers (up to 21356790) that are relatively prime to 21356790.
21356790 has 32 divisors, whose sum is 47319552
The reverse of 21356790 is 09765312
Previous prime number is 35
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million three hundred fifty-six thousand seven hundred ninety
Scientific notation
2.1356790 × 10^7
Engineering notation
2.1356790 × 10^6
Prime Factorization
2 × 13 × 3 × 35 × 7823
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21356790
Product of the distinct prime numbers
The prime factorization of 21356790 is 2 × 13 × 3 × 35 × 7823.
Since it has a total of 5 prime factors.
8 , 1 , 64 , 66 , 738 , 21 , 7628 , 6655 , 82142 , 80313 , 530731 , 515906 , 2951531 , 1641965 , 42819635 , 60583993 , 368080506 , 142273469 , 4289127870 , 3004858392
n×2
42713580
n×3
64070370
n×4
85427160
n×5
106783950
n÷2
10678395
n÷3
7118930
n÷3
5339197.5
n÷5
4271358
n2
456112479104100
n3
9.7410984326057E+21
n4
2.0803859359449E+29
n5
4.4430365552928E+36
2 √n
4621.3407145546
3 √n
277.44612215916
4 √n
67.980443618401
5 √n
29.235275814383
1 , 2 , 3 , 6 , 13 , 26 , 35 , 39 , 70 , 78 , 105 , 210 , 455 , 910 , 1365 , 2730 , 7823 , 15646 , 23469 , 46938 , 101699 , 203398 , 273805 , 305097 , 547610 , 610194 , 821415 , 1642830 , 3559465 , 7118930 , 10678395 , 21356790
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21356789
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21356790 can be divided by 32 positive divisors.
The sum of these divisors (counting 21356790) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001011110000011110110
3
Ternary
1111012001000020
4
Quaternary
1101132003312
5
Quinary
20431404130
6
Senary
2041430010
8
Octal
121360366
10
Decimal
21356790
12
Duodecimal
719b306
16
Hexadecimal
145e0f6
20
Vigesimal
6d9bja
36
Base36
cpr06
md5
6068bce94123f7e74bc91a9879049db1
sha1
b53042eaa535e07183e1d667a48e4bc43f2eeb1a
sha256
72e9be97df61fd55f3caa037a17c2c580d940db79dcb2062043e1b62aeaa5c35
sha512
2e41716d6804f8b948a9f6d2d4a6b01549be6050690ca7a1e2efecc3fd10f0b735035ec986d475f2f4aafa30fef8ab467da15af573c92bc26a9922493b548d3e
ripemd-160
22940dd9218fb91d62be0a85cee2f2d59a7f8736
Diameter
42713580
Circumference
134188669.13652
Area
1.4329196135641E+15
Volume
4.0803417698359E+22
Surface area
5.7316784542563E+15
Circumference
134188669.13652
Perimeter
85427160
Area
456112479104100
Diagonal
30203062.066754
Surface area
2736674874624600
Volume
9.7410984326057E+21
Space diagonal
36991045.366579
Perimeter
64070370
Area
1.9750249694362E+14
Altitude
18495522.683289
Surface area
1.9750249694362E+14
Volume
1.1479994596502E+21
Height
10067687.355585