20121899 is an odd 8-digits composite number following 20121898
and preceding 20121900 . In scientific notation, it is written as 2.0121899 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 17247300 positive integers (up to 20121899) that are relatively prime to 20121899.
20121899 has 6 divisors, whose sum is 23407164
The reverse of 20121899 is 99812102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred twenty-one thousand eight hundred ninety-nine
Scientific notation
2.0121899 × 10^7
Engineering notation
2.0121899 × 10^6
Prime Factorization
7 × 7 × 410651
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2874557
Product of the distinct prime numbers
The prime factorization of 20121899 is 7 × 7 × 410651.
Since it has a total of 3 prime factors.
9 , 5 , 65 , 60 , 831 , 505 , 6758 , 6927 , 10325 , 20813 , 336386 , 575512 , 4748957 , 9933352 , 22295066 , 45021144 , 409125982 , 182422561 , 6869297678 , 2610048570
n×2
40243798
n×3
60365697
n×4
80487596
n×5
100609495
n÷2
10060949.5
n÷3
6707299.6666667
n÷3
5030474.75
n÷5
4024379.8
n2
404890819366201
n3
8.1471721733139E+21
n4
1.6393657560703E+29
n5
3.2987152167706E+36
2 √n
4485.7439739691
3 √n
271.99211968952
4 √n
66.975696890507
5 √n
28.88908541514
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121898
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121899 can be divided by 6 positive divisors.
The sum of these divisors (counting 20121899) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110000100100101011
3
Ternary
1101212022001112
4
Quaternary
1030300210223
5
Quinary
20122400044
6
Senary
1555140535
8
Octal
114604453
10
Decimal
20121899
12
Duodecimal
68a474b
16
Hexadecimal
133092b
20
Vigesimal
65f4ej
36
Base36
bza5n
md5
f19c630e36d1450cf4bd7138e93cdde8
sha1
1abb69a15420b7dab8d9f3d865ad5cd436ea53e3
sha256
d26d24b479cfb37e8a1af70994f93fe5d0acec892ad7b767ad43faedd9af7285
sha512
e85c0b23508f5dff77bfb6de4954b871a208f9d54b939f7a01b82dc1aca929dd9d04742bcc3dbdf3d488b1f967aee0d7de9bae537a63cebd72ecfc46df1c0936
ripemd-160
46dc0be40c6a6be374fdfe9579a0bc6addaf3c45
Diameter
40243798
Circumference
126429620.14935
Area
1.2720020236268E+15
Volume
3.4126794996286E+22
Surface area
5.0880080945072E+15
Circumference
126429620.14935
Perimeter
80487596
Area
404890819366201
Diagonal
28456662.466502
Surface area
2429344916197206
Volume
8.1471721733139E+21
Space diagonal
34852151.412769
Perimeter
60365697
Area
1.7532286766511E+14
Altitude
17426075.706385
Surface area
1.7532286766511E+14
Volume
9.6015344854077E+20
Height
9485554.1555005