20101388 is an even 8-digits composite number following 20101387
and preceding 20101389 . In scientific notation, it is written as 2.0101388 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 12 positive divisors.
There are 9999792 positive integers (up to 20101388) that are relatively prime to 20101388.
20101388 has 12 divisors, whose sum is 35355600
The reverse of 20101388 is 88310102
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred one thousand three hundred eighty-eight
Scientific notation
2.0101388 × 10^7
Engineering notation
2.0101388 × 10^6
Prime Factorization
2 × 2 × 199 × 25253
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10050694
Product of the distinct prime numbers
The prime factorization of 20101388 is 2 × 2 × 199 × 25253.
Since it has a total of 4 prime factors.
8 , 8 , 93 , 70 , 383 , 86 , 7244 , 6830 , 84128 , 72546 , 134307 , 271883 , 3379995 , 9657229 , 47315909 , 72146669 , 532759449 , 432567046 , 709731907 , 4965571397
n×2
40202776
n×3
60304164
n×4
80405552
n×5
100506940
n÷2
10050694
n÷3
6700462.6666667
n÷3
5025347
n÷5
4020277.6
n2
404065799526544
n3
8.1222834138133E+21
n4
1.6326917034703E+29
n5
3.2819369415836E+36
2 √n
4483.4571482284
3 √n
271.89967104255
4 √n
66.95862265779
5 √n
28.883193468464
1 , 2 , 4 , 199 , 398 , 796 , 25253 , 50506 , 101012 , 5025347 , 10050694 , 20101388
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20101387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20101388 can be divided by 12 positive divisors.
The sum of these divisors (counting 20101388) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100101011100100001100
3
Ternary
1101211020220212
4
Quaternary
1030223210030
5
Quinary
20121221023
6
Senary
1554501552
8
Octal
114534414
10
Decimal
20101388
12
Duodecimal
68948b8
16
Hexadecimal
132b90c
20
Vigesimal
65cd98
36
Base36
byubw
md5
03a1d8a3d178fb7034171f29f8ced66f
sha1
f2e6acef2dedaf2a8f1c859150f8505257913eb3
sha256
c44452ddc1a594bcf56461213003bc4e7e93e0c21a938d50b33177385d170373
sha512
0c3c0aa43a3fa396c7bd495b55453f3cac8f8fec020543f737ba746fea05b183d56da788070c9fdbbbcba2cd06bd721d8dab5036d3a2b2657e2209fa512636b1
ripemd-160
7f344ad053624fd27f8b09f541c401146eee55b3
Diameter
40202776
Circumference
126300745.73552
Area
1.2694101473595E+15
Volume
3.402254120428E+22
Surface area
5.0776405894379E+15
Circumference
126300745.73552
Perimeter
80405552
Area
404065799526544
Diagonal
28427655.532124
Surface area
2424394797159264
Volume
8.1222834138133E+21
Space diagonal
34816625.318655
Perimeter
60304164
Area
1.7496562359523E+14
Altitude
17408312.659328
Surface area
1.7496562359523E+14
Volume
9.572202801044E+20
Height
9475885.1773746