21690812 is an even 8-digits composite number following 21690811
and preceding 21690813 . In scientific notation, it is written as 2.1690812 × 10^7.
The sum of its digits is 29. It has a total of 6 prime factors and 36 positive divisors.
There are 9097920 positive integers (up to 21690812) that are relatively prime to 21690812.
21690812 has 36 divisors, whose sum is 44855496
The reverse of 21690812 is 21809612
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million six hundred ninety thousand eight hundred twelve
Scientific notation
2.1690812 × 10^7
Engineering notation
2.1690812 × 10^6
Prime Factorization
2 × 2 × 13 × 13 × 11 × 2917
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
834262
Product of the distinct prime numbers
The prime factorization of 21690812 is 2 × 2 × 13 × 13 × 11 × 2917.
Since it has a total of 6 prime factors.
10 , 5 , 8 , 76 , 299 , 260 , 3863 , 1154 , 62985 , 20714 , 44071 , 65252 , 9777852 , 3559628 , 54305787 , 33052910 , 471885381 , 219141377 , 9960713513 , 877374299
n×2
43381624
n×3
65072436
n×4
86763248
n×5
108454060
n÷2
10845406
n÷3
7230270.6666667
n÷3
5422703
n÷5
4338162.4
n2
470491325219344
n3
1.0205338882964E+22
n4
2.2136208710665E+29
n5
4.8015234153581E+36
2 √n
4657.3395839256
3 √n
278.88507318884
4 √n
68.244703706043
5 √n
29.326157457198
1 , 2 , 4 , 11 , 13 , 22 , 26 , 44 , 52 , 143 , 169 , 286 , 338 , 572 , 676 , 1859 , 2917 , 3718 , 5834 , 7436 , 11668 , 32087 , 37921 , 64174 , 75842 , 128348 , 151684 , 417131 , 492973 , 834262 , 985946 , 1668524 , 1971892 , 5422703 , 10845406 , 21690812
36 divisors
τ
Total Divisors
36
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21690811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.027777777777778
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
36
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21690812 can be divided by 36 positive divisors.
The sum of these divisors (counting 21690812) is 1, the average is 0.027777777777778.
Base
System
Value
2
Binary
1010010101111100110111100
3
Ternary
1111211000012102
4
Quaternary
1102233212330
5
Quinary
21023101222
6
Senary
2052524232
8
Octal
122574674
10
Decimal
21690812
12
Duodecimal
7320678
16
Hexadecimal
14af9bc
20
Vigesimal
6fb70c
36
Base36
cwwqk
md5
b665c64e09509528f27ec11de332dcd7
sha1
2c1ed4d670575ceda4378b84be26fe8e461b1cf2
sha256
c4b6fa66ffc628494e56d8c941a235bf262516e9fab194f9b78e46b6c8be30ff
sha512
856ac7777803f58faf85afb2068a5d67b43defdca300769474a9c6588698fac6864f30b70afa97248c572c874dacab940aa8e5397f187ae9eea8e10ad26d2612
ripemd-160
77c713ca7d2e66fe227e5c444581e36312b6d01d
Diameter
43381624
Circumference
136287391.25919
Area
1.4780920908868E+15
Volume
4.2748023549484E+22
Surface area
5.9123683635473E+15
Circumference
136287391.25919
Perimeter
86763248
Area
470491325219344
Diagonal
30675440.509285
Surface area
2822947951316064
Volume
1.0205338882964E+22
Space diagonal
37569588.441425
Perimeter
65072436
Area
2.0372871995008E+14
Altitude
18784794.220712
Surface area
2.0372871995008E+14
Volume
1.2027107214084E+21
Height
10225146.836428