20215870 is an even 8-digits composite number following 20215869
and preceding 20215871 . In scientific notation, it is written as 2.0215870 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 7888960 positive integers (up to 20215870) that are relatively prime to 20215870.
20215870 has 16 divisors, whose sum is 37276848
The reverse of 20215870 is 07851202
Previous prime number is 41
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred fifteen thousand eight hundred seventy
Scientific notation
2.0215870 × 10^7
Engineering notation
2.0215870 × 10^6
Prime Factorization
2 × 5 × 41 × 49307
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20215870
Product of the distinct prime numbers
The prime factorization of 20215870 is 2 × 5 × 41 × 49307.
Since it has a total of 4 prime factors.
2 , 6 , 13 , 27 , 462 , 308 , 2668 , 5524 , 92552 , 52780 , 99798 , 952632 , 7053289 , 2497674 , 34062470 , 21307724 , 534881821 , 47015988 , 4852837549 , 90295148
n×2
40431740
n×3
60647610
n×4
80863480
n×5
101079350
n÷2
10107935
n÷3
6738623.3333333
n÷3
5053967.5
n÷5
4043174
n2
408681399856900
n3
8.2618500509251E+21
n4
1.67020486589E+29
n5
3.3764644442199E+36
2 √n
4496.2061785465
3 √n
272.41487114444
4 √n
67.053755886949
5 √n
28.916018053937
1 , 2 , 5 , 10 , 41 , 82 , 205 , 410 , 49307 , 98614 , 246535 , 493070 , 2021587 , 4043174 , 10107935 , 20215870
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
-20215869
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 20215870 can be divided by 16 positive divisors.
The sum of these divisors (counting 20215870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000111100000111110
3
Ternary
1102001001221221
4
Quaternary
1031013200332
5
Quinary
20133401440
6
Senary
2001143554
8
Octal
115074076
10
Decimal
20215870
12
Duodecimal
692abba
16
Hexadecimal
134783e
20
Vigesimal
666jda
36
Base36
c1any
md5
065e6ac571f20a6dbe55fb0e33e848f2
sha1
d7f587db2738b1317cd0ebb7363ccacbe673c3ab
sha256
fc32886331b0089e36c8025d778c3d1559d7d6dfacba06ea022ff3dc077cac92
sha512
21e7a9316b8107dcf396fc8f73f150e860a85dd0ed4f1a3e542d8ccb409b09ec32915d51575ab864ace8e62718ed802ff891c94febb5e0b1e7a832ffd865f1e1
ripemd-160
d3e18921ec626980ff8a05ed3bf00f24f6ba29e4
Diameter
40431740
Circumference
127020057.35585
Area
1.2839104834492E+15
Volume
3.4607156566729E+22
Surface area
5.1356419337969E+15
Circumference
127020057.35585
Perimeter
80863480
Area
408681399856900
Diagonal
28589557.529171
Surface area
2452088399141400
Volume
8.2618500509251E+21
Space diagonal
35014913.959207
Perimeter
60647610
Area
1.7696423716513E+14
Altitude
17507456.979604
Surface area
1.7696423716513E+14
Volume
9.7366836602593E+20
Height
9529852.5097238