20121995 is an odd 8-digits composite number following 20121994
and preceding 20121996 . In scientific notation, it is written as 2.0121995 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16097592 positive integers (up to 20121995) that are relatively prime to 20121995.
20121995 has 4 divisors, whose sum is 24146400
The reverse of 20121995 is 59912102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred twenty-one thousand nine hundred ninety-five
Scientific notation
2.0121995 × 10^7
Engineering notation
2.0121995 × 10^6
Prime Factorization
5 × 4024399
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121995
Product of the distinct prime numbers
The prime factorization of 20121995 is 5 × 4024399.
Since it has a total of 2 prime factors.
7 , 2 , 99 , 80 , 802 , 934 , 2274 , 1281 , 40466 , 43522 , 511067 , 283769 , 2987569 , 3048591 , 3715450 , 50536244 , 146900948 , 611904828 , 4887532585 , 3399985451
n×2
40243990
n×3
60365985
n×4
80487980
n×5
100609975
n÷2
10060997.5
n÷3
6707331.6666667
n÷3
5030498.75
n÷5
4024399
n2
404894682780025
n3
8.1472887824262E+21
n4
1.6393970414354E+29
n5
3.2987939070777E+36
2 √n
4485.7546745224
3 √n
271.99255223984
4 √n
66.975776774312
5 √n
28.889112980599
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
-20121994
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 20121995 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121995) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000100110001011
3
Ternary
1101212022012002
4
Quaternary
1030300212023
5
Quinary
20122400440
6
Senary
1555141215
8
Octal
114604613
10
Decimal
20121995
12
Duodecimal
68a480b
16
Hexadecimal
133098b
20
Vigesimal
65f4jf
36
Base36
bza8b
md5
b8e4d59ba7263d489b224a4d9759e39f
sha1
ba9574396ae46cbd350b6b564b10b5707c2f0772
sha256
45018cfa8b6a61666445a177467c4606dea1d49038f9cf9f2a273f3cf9343dc0
sha512
11bea137e9d1fade13258627a5160229919ada934d19947c8d95263dd010e7ac19ea6f255b7a3b18544c5396e79ee09d4e859c6f5eb220be29890936d1b50306
ripemd-160
6cf9740cc1a53f267883593fdafc61bf0d280597
Diameter
40243990
Circumference
126430223.33514
Area
1.2720141608993E+15
Volume
3.4127283447393E+22
Surface area
5.0880566435972E+15
Circumference
126430223.33514
Perimeter
80487980
Area
404894682780025
Diagonal
28456798.231004
Surface area
2429368096680150
Volume
8.1472887824262E+21
Space diagonal
34852317.689647
Perimeter
60365985
Area
1.7532454057237E+14
Altitude
17426158.844823
Surface area
1.7532454057237E+14
Volume
9.6016719105645E+20
Height
9485599.4103345