20145620 is an even 8-digits composite number following 20145619
and preceding 20145621 . In scientific notation, it is written as 2.0145620 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors.
There are 7325600 positive integers (up to 20145620) that are relatively prime to 20145620.
20145620 has 12 divisors, whose sum is 35896224
The reverse of 20145620 is 02654102
Previous prime number is 55
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred forty-five thousand six hundred twenty
Scientific notation
2.0145620 × 10^7
Engineering notation
2.0145620 × 10^6
Prime Factorization
2 × 2 × 55 × 91571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10072810
Product of the distinct prime numbers
The prime factorization of 20145620 is 2 × 2 × 55 × 91571.
Since it has a total of 4 prime factors.
6 , 8 , 74 , 36 , 120 , 983 , 8528 , 7965 , 1863 , 54481 , 612113 , 608873 , 1172552 , 2650547 , 25674398 , 60915803 , 310415090 , 16647967 , 1139979952 , 3251221496
n×2
40291240
n×3
60436860
n×4
80582480
n×5
100728100
n÷2
10072810
n÷3
6715206.6666667
n÷3
5036405
n÷5
4029124
n2
405846005184400
n3
8.176019398963E+21
n4
1.6471097992414E+29
n5
3.3182048113793E+36
2 √n
4488.3872381959
3 √n
272.09895837001
4 √n
66.995426994653
5 √n
28.895893471213
1 , 2 , 4 , 55 , 110 , 220 , 91571 , 183142 , 366284 , 5036405 , 10072810 , 20145620
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20145619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145620 can be divided by 12 positive divisors.
The sum of these divisors (counting 20145620) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110110010111010100
3
Ternary
1101220111121002
4
Quaternary
1030312113110
5
Quinary
20124124440
6
Senary
1555442432
8
Octal
114662724
10
Decimal
20145620
12
Duodecimal
68b6418
16
Hexadecimal
13365d4
20
Vigesimal
65i410
36
Base36
bzsgk
md5
eecd40d97b6b1f2eec95d78efbc1d5ca
sha1
c11418d0287afb6ea35fd5c04d795ef181e18129
sha256
ebcb7a50b98159ff0c6bf71e368cc3da01af9b541a4d1c7944d5d49f20fd2259
sha512
ce9dc4375d8452b8725af9ef05a6417436b73df9892657c7c97a64137e03b4d048f99847c6e57282d1d17acdcaed331407391a5e022486ca30b0031d65c15404
ripemd-160
302ca1c5c310e45e19555f639333b00bab7547bf
Diameter
40291240
Circumference
126578663.58802
Area
1.2750028283761E+15
Volume
3.424762997252E+22
Surface area
5.1000113135043E+15
Circumference
126578663.58802
Perimeter
80582480
Area
405846005184400
Diagonal
28490209.026415
Surface area
2435076031106400
Volume
8.176019398963E+21
Space diagonal
34893237.389976
Perimeter
60436860
Area
1.7573647525706E+14
Altitude
17446618.694988
Surface area
1.7573647525706E+14
Volume
9.6355312668658E+20
Height
9496736.3421382