21686522 is an even 8-digits composite number following 21686521
and preceding 21686523 . In scientific notation, it is written as 2.1686522 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 9028800 positive integers (up to 21686522) that are relatively prime to 21686522.
21686522 has 16 divisors, whose sum is 33011712
The reverse of 21686522 is 22568612
Previous prime number is 191
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million six hundred eighty-six thousand five hundred twenty-two
Scientific notation
2.1686522 × 10^7
Engineering notation
2.1686522 × 10^6
Prime Factorization
2 × 143 × 191 × 397
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21686522
Product of the distinct prime numbers
The prime factorization of 21686522 is 2 × 143 × 191 × 397.
Since it has a total of 4 prime factors.
5 , 8 , 56 , 35 , 836 , 118 , 4984 , 2977 , 25288 , 80667 , 718202 , 469359 , 3039443 , 676032 , 144307 , 81821441 , 916294263 , 304211613 , 2393734065 , 849999960
n×2
43373044
n×3
65059566
n×4
86746088
n×5
108432610
n÷2
10843261
n÷3
7228840.6666667
n÷3
5421630.5
n÷5
4337304.4
n2
470305236456484
n3
1.0199284857129E+22
n4
2.2118701543839E+29
n5
4.796777076419E+36
2 √n
4656.8789977838
3 √n
278.86668605103
4 √n
68.241329103292
5 √n
29.32499734231
1 , 2 , 143 , 191 , 286 , 382 , 397 , 794 , 27313 , 54626 , 56771 , 75827 , 113542 , 151654 , 10843261 , 21686522
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21686521
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21686522 can be divided by 16 positive divisors.
The sum of these divisors (counting 21686522) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101110100011111010
3
Ternary
1111210210022112
4
Quaternary
1102232203322
5
Quinary
21022432042
6
Senary
2052452322
8
Octal
122564372
10
Decimal
21686522
12
Duodecimal
731a0a2
16
Hexadecimal
14ae8fa
20
Vigesimal
6fag62
36
Base36
cwtfe
md5
4fdc4acb4f83ef3fcf8aa18adc304796
sha1
6d587d77fc4a69aa08a5389b222239012ce0d3f5
sha256
c7fd4aee59a0fc487571627227b77d42785a1f73f4624986a896ddf40fccef2e
sha512
958e07b2959a07749db18b1078d2704b2bd89c658ee28f1a0960bb4770ba065e1afcfbacfd70ad33623fe42ff2e6d1f6d3dde1ba197ca3898e1a2eb958197fff
ripemd-160
126145bde99440b89458d0ff6f0f0bbdaa204778
Diameter
43373044
Circumference
136260436.39423
Area
1.4775074757965E+15
Volume
4.2722664505367E+22
Surface area
5.910029903186E+15
Circumference
136260436.39423
Perimeter
86746088
Area
470305236456484
Diagonal
30669373.533103
Surface area
2821831418738904
Volume
1.0199284857129E+22
Space diagonal
37562157.94346
Perimeter
65059566
Area
2.0364814115208E+14
Altitude
18781078.97173
Surface area
2.0364814115208E+14
Volume
1.2019972476215E+21
Height
10223124.511034