20121956 is an even 8-digits composite number following 20121955
and preceding 20121957 . In scientific notation, it is written as 2.0121956 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 10060976 positive integers (up to 20121956) that are relatively prime to 20121956.
20121956 has 6 divisors, whose sum is 35213430
The reverse of 20121956 is 65912102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-one thousand nine hundred fifty-six
Scientific notation
2.0121956 × 10^7
Engineering notation
2.0121956 × 10^6
Prime Factorization
2 × 2 × 5030489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10060978
Product of the distinct prime numbers
The prime factorization of 20121956 is 2 × 2 × 5030489.
Since it has a total of 3 prime factors.
6 , 9 , 20 , 5 , 685 , 954 , 6291 , 69 , 436 , 88508 , 149592 , 370459 , 6556956 , 3701700 , 48011956 , 31332893 , 380464138 , 475509758 , 4321126726 , 4949388578
n×2
40243912
n×3
60365868
n×4
80487824
n×5
100609780
n÷2
10060978
n÷3
6707318.6666667
n÷3
5030489
n÷5
4024391.2
n2
404893113265936
n3
8.1472414098402E+21
n4
1.6393843317018E+29
n5
3.2987619389593E+36
2 √n
4485.7503274257
3 √n
271.99237651644
4 √n
66.975744321551
5 √n
28.889101782144
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
-20121955
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 20121956 can be divided by 6 positive divisors.
The sum of these divisors (counting 20121956) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110000100101100100
3
Ternary
1101212022010122
4
Quaternary
1030300211210
5
Quinary
20122400311
6
Senary
1555141112
8
Octal
114604544
10
Decimal
20121956
12
Duodecimal
68a4798
16
Hexadecimal
1330964
20
Vigesimal
65f4hg
36
Base36
bza78
md5
3d80dd31d63d06ca1003764a2cb8a558
sha1
d2badee4a1d3929b1d095997c38c7a1251284e95
sha256
e0c319e8be23c04091270b5746c4e56e7e5e999b0e7aaf5d79064629dfd0dae2
sha512
aa1632d00339912fb26449532ff93d42ddd9d2572196ab963b668ac341b542dcd49cdc50c6fb075b5f0ae2608e0d71c0bc6106a740adae49dfc2b340bcd26f84
ripemd-160
a84d3acfca2fc5ac0f5b0d2f5c75a1776b21b2f6
Diameter
40243912
Circumference
126429978.29091
Area
1.2720092301254E+15
Volume
3.4127085013569E+22
Surface area
5.0880369205015E+15
Circumference
126429978.29091
Perimeter
80487824
Area
404893113265936
Diagonal
28456743.076675
Surface area
2429358679595616
Volume
8.1472414098402E+21
Space diagonal
34852250.139665
Perimeter
60365868
Area
1.7532386095284E+14
Altitude
17426125.069833
Surface area
1.7532386095284E+14
Volume
9.6016160814364E+20
Height
9485581.0255582