20121380 is an even 8-digits composite number following 20121379
and preceding 20121381 . In scientific notation, it is written as 2.0121380 × 10^7.
The sum of its digits is 17. It has a total of 5 prime factors and 24 positive divisors.
There are 7624800 positive integers (up to 20121380) that are relatively prime to 20121380.
20121380 has 24 divisors, whose sum is 44479680
The reverse of 20121380 is 08312102
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty-one thousand three hundred eighty
Scientific notation
2.0121380 × 10^7
Engineering notation
2.0121380 × 10^6
Prime Factorization
2 × 2 × 5 × 19 × 52951
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10060690
Product of the distinct prime numbers
The prime factorization of 20121380 is 2 × 2 × 5 × 19 × 52951.
Since it has a total of 5 prime factors.
1 , 7 , 5 , 52 , 673 , 188 , 2025 , 4663 , 82686 , 84896 , 599931 , 543086 , 5700966 , 6844125 , 13961551 , 59875840 , 738911791 , 104083138 , 1070381615 , 713003707
n×2
40242760
n×3
60364140
n×4
80485520
n×5
100606900
n÷2
10060690
n÷3
6707126.6666667
n÷3
5030345
n÷5
4024276
n2
404869933104400
n3
8.1465417745682E+21
n4
1.6391966273196E+29
n5
3.2982898233016E+36
2 √n
4485.6861236605
3 √n
271.98978119049
4 √n
66.975265013738
5 √n
28.888936387556
1 , 2 , 4 , 5 , 10 , 19 , 20 , 38 , 76 , 95 , 190 , 380 , 52951 , 105902 , 211804 , 264755 , 529510 , 1006069 , 1059020 , 2012138 , 4024276 , 5030345 , 10060690 , 20121380
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
-20121379
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 20121380 can be divided by 24 positive divisors.
The sum of these divisors (counting 20121380) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110000011100100100
3
Ternary
1101212021100022
4
Quaternary
1030300130210
5
Quinary
20122341010
6
Senary
1555134312
8
Octal
114603444
10
Decimal
20121380
12
Duodecimal
68a4398
16
Hexadecimal
1330724
20
Vigesimal
65f390
36
Base36
bz9r8
md5
871d0b80ddf8febbe1d75c4e89159c16
sha1
da461dba7839779167f2c655772d09705c86b619
sha256
383c37a605fb81da0b1f07730941ab6c697f8f868af035c06c2bba3e81b92e7f
sha512
85639ce78beaa6b8effc957dc8b694de7baa687b163fbafe26ac9bf95b1a2e8e104eb09a8ba9aa70b704280bf7fe83c6313dae2fc30a9fc4db5dd9fe8f2ea94b
ripemd-160
ba2c91d8a2bdb086eb8b1551869756178934b5d1
Diameter
40242760
Circumference
126426359.17618
Area
1.2719364075002E+15
Volume
3.4124154388194E+22
Surface area
5.0877456300007E+15
Circumference
126426359.17618
Perimeter
80485520
Area
404869933104400
Diagonal
28455928.489663
Surface area
2429219598626400
Volume
8.1465417745682E+21
Space diagonal
34851252.4784
Perimeter
60364140
Area
1.7531382364846E+14
Altitude
17425626.2392
Surface area
1.7531382364846E+14
Volume
9.6007915533611E+20
Height
9485309.4965542