20121620 is an even 8-digits composite number following 20121619
and preceding 20121621 . In scientific notation, it is written as 2.0121620 × 10^7.
The sum of its digits is 14. It has a total of 5 prime factors and 24 positive divisors.
There are 8029856 positive integers (up to 20121620) that are relatively prime to 20121620.
20121620 has 24 divisors, whose sum is 42354144
The reverse of 20121620 is 02612102
Previous prime number is 563
Is Prime? no
Number parity even
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand six hundred twenty
Scientific notation
2.0121620 × 10^7
Engineering notation
2.0121620 × 10^6
Prime Factorization
2 × 2 × 5 × 563 × 1787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10060810
Product of the distinct prime numbers
The prime factorization of 20121620 is 2 × 2 × 5 × 563 × 1787.
Since it has a total of 5 prime factors.
1 , 1 , 55 , 75 , 361 , 59 , 761 , 1696 , 30748 , 36798 , 257734 , 818800 , 4111710 , 8319605 , 2508065 , 37551518 , 332505354 , 794824292 , 632278989 , 8898834767
n×2
40243240
n×3
60364860
n×4
80486480
n×5
100608100
n÷2
10060810
n÷3
6707206.6666667
n÷3
5030405
n÷5
4024324
n2
404879591424400
n3
8.146833284397E+21
n4
1.6392748355199E+29
n5
3.2984865315894E+36
2 √n
4485.712875341
3 √n
271.99086258232
4 √n
66.975464726577
5 √n
28.889005302428
1 , 2 , 4 , 5 , 10 , 20 , 563 , 1126 , 1787 , 2252 , 2815 , 3574 , 5630 , 7148 , 8935 , 11260 , 17870 , 35740 , 1006081 , 2012162 , 4024324 , 5030405 , 10060810 , 20121620
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121620 can be divided by 24 positive divisors.
The sum of these divisors (counting 20121620) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110000100000010100
3
Ternary
1101212021200012
4
Quaternary
1030300200110
5
Quinary
20122342440
6
Senary
1555135352
8
Octal
114604024
10
Decimal
20121620
12
Duodecimal
68a4558
16
Hexadecimal
1330814
20
Vigesimal
65f410
36
Base36
bz9xw
md5
9afe53dd60f557517d8b15c9d397d074
sha1
ffb6feb1e77fa40ae65d277ac1f465b747cffc91
sha256
ec2ed1ce5275695456f0bb257cfba3a1e0734386de06fc1f124d6b8bdfd82a9a
sha512
b7d3d8970b9e1dbc2257d99c5a584fcbe26ac84a3630b397f20305566a1ca6cea6b7f7e6c4b394b8aa290b70528812ed8a18f7cd6b4193eea523d175e0f34448
ripemd-160
5520233a8cae554b37c20dde5d44ee93e0f4d420
Diameter
40243240
Circumference
126427867.14065
Area
1.2719667500073E+15
Volume
3.412537546171E+22
Surface area
5.0878670000293E+15
Circumference
126427867.14065
Perimeter
80486480
Area
404879591424400
Diagonal
28456267.900918
Surface area
2429277548546400
Volume
8.146833284397E+21
Space diagonal
34851668.170594
Perimeter
60364860
Area
1.753180058237E+14
Altitude
17425834.085297
Surface area
1.753180058237E+14
Volume
9.601135100989E+20
Height
9485422.6336392