21690858 is an even 8-digits composite number following 21690857
and preceding 21690859 . In scientific notation, it is written as 2.1690858 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 6197376 positive integers (up to 21690858) that are relatively prime to 21690858.
21690858 has 8 divisors, whose sum is 34085700
The reverse of 21690858 is 85809612
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred ninety thousand eight hundred fifty-eight
Scientific notation
2.1690858 × 10^7
Engineering notation
2.1690858 × 10^6
Prime Factorization
2 × 21 × 516449
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21690858
Product of the distinct prime numbers
The prime factorization of 21690858 is 2 × 21 × 516449.
Since it has a total of 3 prime factors.
6 , 3 , 90 , 71 , 785 , 940 , 6123 , 5935 , 53578 , 81661 , 650707 , 546564 , 1744106 , 8267470 , 23178497 , 25110955 , 898606535 , 596317754 , 143210763 , 303847110
n×2
43381716
n×3
65072574
n×4
86763432
n×5
108454290
n÷2
10845429
n÷3
7230286
n÷3
5422714.5
n÷5
4338171.6
n2
470493320776164
n3
1.0205403810904E+22
n4
2.2136396489498E+29
n5
4.801574328854E+36
2 √n
4657.3445223646
3 √n
278.88527033383
4 √n
68.244739887882
5 √n
29.326169895664
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
-21690857
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 21690858 can be divided by 8 positive divisors.
The sum of these divisors (counting 21690858) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111100111101010
3
Ternary
1111211000021010
4
Quaternary
1102233213222
5
Quinary
21023101413
6
Senary
2052524350
8
Octal
122574752
10
Decimal
21690858
12
Duodecimal
73206b6
16
Hexadecimal
14af9ea
20
Vigesimal
6fb72i
36
Base36
cwwru
md5
b0aaf369071e30f8e35463f04272c708
sha1
739571cf5c65e27a4b3535c5cd260daca863a3c8
sha256
883293343b4a5f05307f3a53d637b1e8a562ecb593130b1338c5e0a332e5379b
sha512
c207e9bd7b348fedb8480ea215437941c4c03dc9e2c521df5ba14cca619930ed3391ea96050173d18b01b94907147cc24e3c8825e14a768b3a8cdd9cab88b95f
ripemd-160
272b83612ef0e9d945ac9c4000a800ec5ee08e38
Diameter
43381716
Circumference
136287680.28572
Area
1.4780983601135E+15
Volume
4.2748295519005E+22
Surface area
5.9123934404539E+15
Circumference
136287680.28572
Perimeter
86763432
Area
470493320776164
Diagonal
30675505.563109
Surface area
2822959924656984
Volume
1.0205403810904E+22
Space diagonal
37569668.115762
Perimeter
65072574
Area
2.0372958405153E+14
Altitude
18784834.057881
Surface area
2.0372958405153E+14
Volume
1.2027183732396E+21
Height
10225168.521036