20121568 is an even 8-digits composite number following 20121567
and preceding 20121569 . In scientific notation, it is written as 2.0121568 × 10^7.
The sum of its digits is 25. It has a total of 6 prime factors and 12 positive divisors.
There are 10060768 positive integers (up to 20121568) that are relatively prime to 20121568.
20121568 has 12 divisors, whose sum is 39614400
The reverse of 20121568 is 86512102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-one thousand five hundred sixty-eight
Scientific notation
2.0121568 × 10^7
Engineering notation
2.0121568 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 628799
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
1257598
Product of the distinct prime numbers
The prime factorization of 20121568 is 2 × 2 × 2 × 2 × 2 × 628799.
Since it has a total of 6 prime factors.
7 , 5 , 24 , 51 , 885 , 799 , 8707 , 8048 , 38054 , 74534 , 427738 , 148235 , 7478309 , 4376015 , 12684527 , 51326680 , 307158458 , 504404203 , 4676483381 , 4912941103
n×2
40243136
n×3
60364704
n×4
80486272
n×5
100607840
n÷2
10060784
n÷3
6707189.3333333
n÷3
5030392
n÷5
4024313.6
n2
404877498778624
n3
8.146770123344E+21
n4
1.6392578901723E+29
n5
3.2984439106639E+36
2 √n
4485.7070791571
3 √n
271.99062828149
4 √n
66.975421455614
5 √n
28.888990370928
1 , 2 , 4 , 8 , 16 , 32 , 628799 , 1257598 , 2515196 , 5030392 , 10060784 , 20121568
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
-20121567
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 20121568 can be divided by 12 positive divisors.
The sum of these divisors (counting 20121568) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110000011111100000
3
Ternary
1101212021121021
4
Quaternary
1030300133200
5
Quinary
20122342233
6
Senary
1555135224
8
Octal
114603740
10
Decimal
20121568
12
Duodecimal
68a4514
16
Hexadecimal
13307e0
20
Vigesimal
65f3i8
36
Base36
bz9wg
md5
0dba8deb0472d49c9f8d5165b0be470a
sha1
df2f52911a22c540ed0f981ec39e4ecfa7e8dcd5
sha256
181a72c372bf917eac9e4dd5a09efc114612cfc2179a7acb4d73ab33e46b34ae
sha512
3ef48b4512a09438064eb30af12bf28df5214f2e1403d91e98b48e2d7385a565770dcf08d0bda64dd9f1890ec25aebde3af1f3d16a6a798173e40b1e5cd22189
ripemd-160
1cc3fda19e2fea0273dd457d5254923ab4c94a6f
Diameter
40243136
Circumference
126427540.41501
Area
1.2719601757667E+15
Volume
3.412511089331E+22
Surface area
5.0878407030669E+15
Circumference
126427540.41501
Perimeter
80486272
Area
404877498778624
Diagonal
28456194.361812
Surface area
2429264992671744
Volume
8.146770123344E+21
Space diagonal
34851578.103952
Perimeter
60364704
Area
1.753170996815E+14
Altitude
17425789.051976
Surface area
1.753170996815E+14
Volume
9.6010606649742E+20
Height
9485398.1206042