21351749 is an odd 8-digits prime number following 21351748
and preceding 21351750 . In scientific notation, it is written as 2.1351749 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21351748 positive integers (up to 21351749) that are relatively prime to 21351749.
21351749 has 2 divisors, whose sum is 21351750
The reverse of 21351749 is 94715312
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 32 Digital Root 5
Name
twenty-one million three hundred fifty-one thousand seven hundred forty-nine
Scientific notation
2.1351749 × 10^7
Engineering notation
2.1351749 × 10^6
Prime Factorization
21351749
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21351749 Product of the distinct prime numbers
The prime factorization of 21351749 is 21351749.
Since it has a total of 1 prime factors.
8 , 4 , 46 , 4 , 439 , 728 , 6730 , 9320 , 59539 , 31093 , 503119 , 568836 , 1268299 , 1916058 , 63312066 , 11045420 , 409514113 , 443727886 , 5961504114 , 4742337515
n×2
42703498
n×3
64055247
n×4
85406996
n×5
106758745
n÷2
10675874.5
n÷3
7117249.6666667
n÷3
5337937.25
n÷5
4270349.8
n2
455897185359001
n3
9.7342022715919E+21
n4
2.0784224361826E+29
n5
4.4377954173339E+36
2 √n4620.7952778715
3 √n277.42429122612
4 √n67.976431782431
5 √n29.233895560686
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21351750 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10675875 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4620.795386078 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999063309 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21351749 can be divided by 2 positive divisors.
The sum of these divisors (counting 21351749) is 21351750, the average is 10675875.
Base
System
Value
2
Binary
1010001011100110101000101
3
Ternary
1111011210002112
4
Quaternary
1101130311011
5
Quinary
20431223444
6
Senary
2041350405
8
Octal
121346505
10
Decimal
21351749
12
Duodecimal
7198405
16
Hexadecimal
145cd45
20
Vigesimal
6d8j79
36
Base36
cpn45
md5
c95464037f69a5d093e9a29e2a9bb706
sha1
4974a376ae6ba43ec693dd8d4fe36ae711afb777
sha256
6e72ee6cbe0f8e5755da277b8b65d56b2dec88926d6b8588e2528f40d18b8e56
sha512
1f80cf8abc9b225a9b0a119e77454db92437eacf28ca9cf8016ec3c10c2f66326cca90de024daaab143ddd573294472fce8d7d24b60e10cbbec032d39dd05a3d
ripemd-160
f8143b75e7cb7cdcbbafdcfd1389d44616009a5a
Diameter
42703498
Circumference
134156995.59939
Area
1.4322432483161E+15
Volume
4.0774531126653E+22
Surface area
5.7289729932644E+15
Circumference
134156995.59939
Perimeter
85406996
Area
455897185359001
Diagonal
30195933.016186
Surface area
2735383112154006
Volume
9.7342022715919E+21
Space diagonal
36982314.098458
Perimeter
64055247
Area
1.9740927201736E+14
Altitude
18491157.049229
Surface area
1.9740927201736E+14
Volume
1.1471867392807E+21
Height
10065311.005395