21131817 is an odd 8-digits composite number following 21131816
and preceding 21131818 . In scientific notation, it is written as 2.1131817 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 12037392 positive integers (up to 21131817) that are relatively prime to 21131817.
21131817 has 8 divisors, whose sum is 22207680
The reverse of 21131817 is 71813112
Previous prime number is 359
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million one hundred thirty-one thousand eight hundred seventeen
Scientific notation
2.1131817 × 10^7
Engineering notation
2.1131817 × 10^6
Prime Factorization
21 × 359 × 2803
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131817
Product of the distinct prime numbers
The prime factorization of 21131817 is 21 × 359 × 2803.
Since it has a total of 3 prime factors.
3 , 10 , 86 , 12 , 783 , 994 , 3863 , 2507 , 93577 , 2274 , 91350 , 716544 , 6491134 , 6616093 , 32560623 , 1636865 , 930956999 , 553359390 , 7666608815 , 9658072895
n×2
42263634
n×3
63395451
n×4
84527268
n×5
105659085
n÷2
10565908.5
n÷3
7043939
n÷3
5282954.25
n÷5
4226363.4
n2
446553689721489
n3
9.4364908518693E+21
n4
1.9941019780388E+29
n5
4.2138998079253E+36
2 √n
4596.9356097296
3 √n
276.46847291629
4 √n
67.800705082835
5 √n
29.173421596504
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131816
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131817 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131817) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111001000101001
3
Ternary
1110202121101220
4
Quaternary
1100213020221
5
Quinary
20402204232
6
Senary
2032532253
8
Octal
120471051
10
Decimal
21131817
12
Duodecimal
70b1089
16
Hexadecimal
1427229
20
Vigesimal
6c19ah
36
Base36
ckxex
md5
283aeae6310ad673c7f436e09c7e5f78
sha1
bb41f1d5621a53448b76779de31c4ba9f86309cd
sha256
533b801048f7e90e895dc3733ad604d21e010794353b7b03ada4c991d7b5747b
sha512
79bc598ceed3c8e567ba40ad520ad745007fc296f6ee75ac550124b93059e0792235d3bb3cdb11d8d57ee8c0c3a4479ebb98f10456421a7e8f3e0e93bb30eae5
ripemd-160
75980a2a7a977f302e813abc3c0247c28b5599c3
Diameter
42263634
Circumference
132775122.08841
Area
1.4028897910624E+15
Volume
3.9527480447866E+22
Surface area
5.6115591642498E+15
Circumference
132775122.08841
Perimeter
84527268
Area
446553689721489
Diagonal
29884902.198986
Surface area
2679322138328934
Volume
9.4364908518693E+21
Space diagonal
36601380.700248
Perimeter
63395451
Area
1.9336341972624E+14
Altitude
18300690.350124
Surface area
1.9336341972624E+14
Volume
1.1121011119936E+21
Height
9961634.0663288