20121278 is an even 8-digits composite number following 20121277
and preceding 20121279 . In scientific notation, it is written as 2.0121278 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 10060638 positive integers (up to 20121278) that are relatively prime to 20121278.
20121278 has 4 divisors, whose sum is 30181920
The reverse of 20121278 is 87212102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-one thousand two hundred seventy-eight
Scientific notation
2.0121278 × 10^7
Engineering notation
2.0121278 × 10^6
Prime Factorization
2 × 10060639
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121278
Product of the distinct prime numbers
The prime factorization of 20121278 is 2 × 10060639.
Since it has a total of 2 prime factors.
3 , 1 , 67 , 93 , 771 , 748 , 9782 , 3902 , 86129 , 5209 , 487651 , 697040 , 7126352 , 6766895 , 48857778 , 51506750 , 445338708 , 911282758 , 9928029852 , 141688702
n×2
40242556
n×3
60363834
n×4
80485112
n×5
100606390
n÷2
10060639
n÷3
6707092.6666667
n÷3
5030319.5
n÷5
4024255.6
n2
404865828353284
n3
8.1464178849967E+21
n4
1.6391633896819E+29
n5
3.2982062251212E+36
2 √n
4485.6747541479
3 √n
271.98932159635
4 √n
66.975180135241
5 √n
28.888907098536
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
-20121277
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 20121278 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121278) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011010111110
3
Ternary
1101212021012112
4
Quaternary
1030300122332
5
Quinary
20122340103
6
Senary
1555134022
8
Octal
114603276
10
Decimal
20121278
12
Duodecimal
68a4312
16
Hexadecimal
13306be
20
Vigesimal
65f33i
36
Base36
bz9oe
md5
9bb01c1ed5258be6bb0da3951afb5547
sha1
92cf69ba0110f2586718bfe5f6378bfd13118bfc
sha256
061673e7e1a7a00682faf79f5e762df7204cb5c92a276ba332832017ef176a6b
sha512
28c39ec7a163a607a0db93bab6e1b96f79e2b6d4f4487a89aab6e3a4581b63fe6edcc94682b5725b4a4f45ddd380b802eff668b88d3bd9115b286f85c3d754d2
ripemd-160
daa3d732e2dea671b2d4e5f039acbb876020973e
Diameter
40242556
Circumference
126425718.29128
Area
1.2719235120442E+15
Volume
3.4123635440771E+22
Surface area
5.0876940481769E+15
Circumference
126425718.29128
Perimeter
80485112
Area
404865828353284
Diagonal
28455784.239879
Surface area
2429194970119704
Volume
8.1464178849967E+21
Space diagonal
34851075.809218
Perimeter
60363834
Area
1.7531204623909E+14
Altitude
17425537.904609
Surface area
1.7531204623909E+14
Volume
9.6006455481009E+20
Height
9485261.4132931