20121397 is an odd 8-digits composite number following 20121396
and preceding 20121398 . In scientific notation, it is written as 2.0121397 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19741696 positive integers (up to 20121397) that are relatively prime to 20121397.
20121397 has 4 divisors, whose sum is 20501100
The reverse of 20121397 is 79312102
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-one thousand three hundred ninety-seven
Scientific notation
2.0121397 × 10^7
Engineering notation
2.0121397 × 10^6
Prime Factorization
53 × 379649
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121397
Product of the distinct prime numbers
The prime factorization of 20121397 is 53 × 379649.
Since it has a total of 2 prime factors.
6 , 10 , 83 , 53 , 599 , 510 , 1811 , 4551 , 53283 , 51046 , 197432 , 219298 , 3953811 , 1415006 , 6867631 , 73510640 , 77277753 , 110596148 , 6884555167 , 1394045883
n×2
40242794
n×3
60364191
n×4
80485588
n×5
100606985
n÷2
10060698.5
n÷3
6707132.3333333
n÷3
5030349.25
n÷5
4024279.4
n2
404870617231609
n3
8.1465624229522E+21
n4
1.639202166975E+29
n5
3.2983037564965E+36
2 √n
4485.6880185764
3 √n
271.98985778936
4 √n
66.975279160123
5 √n
28.888941269048
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121396
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121397 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121397) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011100110101
3
Ternary
1101212021100221
4
Quaternary
1030300130311
5
Quinary
20122341042
6
Senary
1555134341
8
Octal
114603465
10
Decimal
20121397
12
Duodecimal
68a43b1
16
Hexadecimal
1330735
20
Vigesimal
65f39h
36
Base36
bz9rp
md5
63d31cb8f27127f75fe6fc8b25f69d58
sha1
b5b1ac8627b28db75f7f839c8d4b5fcf6e184500
sha256
4d7839fe592526111f8f579fac04fea5eb71c6485faf6b6dab751d4968c2c376
sha512
993b9079257818663901522ea2b7363b1386595350372ba379ecbb94f64819efebbd1c4f83b5deed5227025a3e828aea246555ffc6d62081cc8f4e21c816de95
ripemd-160
d1acdafccc5173bbd9b8d7e0715af34115e569e5
Diameter
40242794
Circumference
126426465.99033
Area
1.2719385567492E+15
Volume
3.4124240879943E+22
Surface area
5.0877542269968E+15
Circumference
126426465.99033
Perimeter
80485588
Area
404870617231609
Diagonal
28455952.531293
Surface area
2429223703389654
Volume
8.1465624229522E+21
Space diagonal
34851281.923264
Perimeter
60364191
Area
1.7531411988423E+14
Altitude
17425640.961632
Surface area
1.7531411988423E+14
Volume
9.6008158877151E+20
Height
9485317.5104311