21402685 is an odd 8-digits composite number following 21402684
and preceding 21402686 . In scientific notation, it is written as 2.1402685 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 17122144 positive integers (up to 21402685) that are relatively prime to 21402685.
21402685 has 4 divisors, whose sum is 25683228
The reverse of 21402685 is 58620412
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred two thousand six hundred eighty-five
Scientific notation
2.1402685 × 10^7
Engineering notation
2.1402685 × 10^6
Prime Factorization
5 × 4280537
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21402685
Product of the distinct prime numbers
The prime factorization of 21402685 is 5 × 4280537.
Since it has a total of 2 prime factors.
8 , 5 , 53 , 60 , 596 , 586 , 7792 , 4015 , 6390 , 46905 , 852394 , 725784 , 7188113 , 9878749 , 42951760 , 1966984 , 96814492 , 257281993 , 769159204 , 1014599147
n×2
42805370
n×3
64208055
n×4
85610740
n×5
107013425
n÷2
10701342.5
n÷3
7134228.3333333
n÷3
5350671.25
n÷5
4280537
n2
458074925209225
n3
9.8040333306516E+21
n4
2.0983263710544E+29
n5
4.490981834687E+36
2 √n
4626.3036000678
3 √n
277.64472066025
4 √n
68.016936126731
5 √n
29.247830145967
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21402684
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21402685 can be divided by 4 positive divisors.
The sum of these divisors (counting 21402685) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001101001010000111101
3
Ternary
1111021100222001
4
Quaternary
1101221100331
5
Quinary
20434341220
6
Senary
2042422301
8
Octal
121512075
10
Decimal
21402685
12
Duodecimal
7201991
16
Hexadecimal
146943d
20
Vigesimal
6df6e5
36
Base36
cqqf1
md5
5cf587a6c7024ce8221aa53d2322868f
sha1
4dd15064d3a4add324fbf2c0c161b1377c13e27b
sha256
8070cf892de98802033f2d0d426404ea2953f6ccdbc09177a804879fb99d42dc
sha512
34a31aa5cdb8a526edc2a2eb768401c315780f06d08f718d78b0688e2b6f209a48755d1248a9a3f0236d8ed46811beb1d955cc94bc2de9a00997c93a0652923d
ripemd-160
04eceb18cad721ee37dd58e9e6b2427a8523fec8
Diameter
42805370
Circumference
134477035.92619
Area
1.439084819831E+15
Volume
4.1067038782833E+22
Surface area
5.756339279324E+15
Circumference
134477035.92619
Perimeter
85610740
Area
458074925209225
Diagonal
30267967.398199
Surface area
2748449551255350
Volume
9.8040333306516E+21
Space diagonal
37070537.838392
Perimeter
64208055
Area
1.9835226103392E+14
Altitude
18535268.919196
Surface area
1.9835226103392E+14
Volume
1.1554164085138E+21
Height
10089322.466066