21372685 is an odd 8-digits composite number following 21372684
and preceding 21372686 . In scientific notation, it is written as 2.1372685 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 16537600 positive integers (up to 21372685) that are relatively prime to 21372685.
21372685 has 16 divisors, whose sum is 26499312
The reverse of 21372685 is 58627312
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million three hundred seventy-two thousand six hundred eighty-five
Scientific notation
2.1372685 × 10^7
Engineering notation
2.1372685 × 10^6
Prime Factorization
5 × 41 × 137 × 761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21372685
Product of the distinct prime numbers
The prime factorization of 21372685 is 5 × 41 × 137 × 761.
Since it has a total of 4 prime factors.
5 , 10 , 5 , 9 , 604 , 704 , 7872 , 268 , 31821 , 87672 , 405932 , 640573 , 2641915 , 3904746 , 8907552 , 66598718 , 105154209 , 102117437 , 4636588892 , 3676747346
n×2
42745370
n×3
64118055
n×4
85490740
n×5
106863425
n÷2
10686342.5
n÷3
7124228.3333333
n÷3
5343171.25
n÷5
4274537
n2
456791664109225
n3
9.7628643476323E+21
n4
2.0865862439968E+29
n5
4.4595950518276E+36
2 √n
4623.060133721
3 √n
277.51493575429
4 √n
67.993088867332
5 √n
29.239626247471
1 , 5 , 41 , 137 , 205 , 685 , 761 , 3805 , 5617 , 28085 , 31201 , 104257 , 156005 , 521285 , 4274537 , 21372685
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
-21372684
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 21372685 can be divided by 16 positive divisors.
The sum of these divisors (counting 21372685) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001100001111100001101
3
Ternary
1111012211210221
4
Quaternary
1101201330031
5
Quinary
20432411220
6
Senary
2042031341
8
Octal
121417415
10
Decimal
21372685
12
Duodecimal
71a8551
16
Hexadecimal
1461f0d
20
Vigesimal
6dbbe5
36
Base36
cq39p
md5
abea1e4ef462bfef3924c7330680aa87
sha1
8137a22ad9288d722f098a7fb6a7ee812c8090b7
sha256
c1b6624c732cba15e1e369324abc45eb408042a9bc989d99e780582f38c49df9
sha512
fa86a36285a3ca1cab0efd83dcb52300a1ece60c4fef017d214db00fdcbab7dc36e72f7afa55a170681df9627edd73d755ad1c53b348c119408dae7bcc7272e2
ripemd-160
a797708a169b4e9bd95b4a13f0cb5fe09a96254d
Diameter
42745370
Circumference
134288540.36698
Area
1.4350533361866E+15
Volume
4.089459055002E+22
Surface area
5.7402133447464E+15
Circumference
134288540.36698
Perimeter
85490740
Area
456791664109225
Diagonal
30225540.991328
Surface area
2740749984655350
Volume
9.7628643476323E+21
Space diagonal
37018576.314165
Perimeter
64118055
Area
1.9779659267778E+14
Altitude
18509288.157083
Surface area
1.9779659267778E+14
Volume
1.1505645973359E+21
Height
10075180.330443