20138906 is an even 8-digits composite number following 20138905
and preceding 20138907 . In scientific notation, it is written as 2.0138906 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 9855600 positive integers (up to 20138906) that are relatively prime to 20138906.
20138906 has 16 divisors, whose sum is 30855168
The reverse of 20138906 is 60983102
Previous prime number is 431
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-eight thousand nine hundred six
Scientific notation
2.0138906 × 10^7
Engineering notation
2.0138906 × 10^6
Prime Factorization
2 × 61 × 431 × 383
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20138906
Product of the distinct prime numbers
The prime factorization of 20138906 is 2 × 61 × 431 × 383.
Since it has a total of 4 prime factors.
9 , 7 , 36 , 92 , 299 , 103 , 6299 , 6371 , 52504 , 86328 , 898551 , 910575 , 7635995 , 140689 , 13339836 , 6092731 , 371821154 , 395931033 , 8318672167 , 5874493363
n×2
40277812
n×3
60416718
n×4
80555624
n×5
100694530
n÷2
10069453
n÷3
6712968.6666667
n÷3
5034726.5
n÷5
4027781.2
n2
405575534876836
n3
8.1678475727843E+21
n4
1.6449151449063E+29
n5
3.3126791481245E+36
2 √n
4487.6392457505
3 √n
272.06872722641
4 √n
66.98984434786
5 √n
28.893967167661
1 , 2 , 61 , 122 , 383 , 431 , 766 , 862 , 23363 , 26291 , 46726 , 52582 , 165073 , 330146 , 10069453 , 20138906
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138906 can be divided by 16 positive divisors.
The sum of these divisors (counting 20138906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100101110011010
3
Ternary
1101220011101102
4
Quaternary
1030310232122
5
Quinary
20123421111
6
Senary
1555351402
8
Octal
114645632
10
Decimal
20138906
12
Duodecimal
68b2562
16
Hexadecimal
1334b9a
20
Vigesimal
65h756
36
Base36
bzna2
md5
90a047aa42b141150e64a719798497b6
sha1
a7b8fa021d4a8f449058d6d9db85e32c1ce4545f
sha256
662ceac06a240b032dcdc8ad9dade8b7f2173e2a2ae5ad07fc44c3c1189b690b
sha512
4c4e204d082defa2177e125df21b912ec9da8a46186e49fd8dccc8c9a495d785ae78200bd5958f1ee264d932a48a120c384ab646c41a57ebbec3834ecca0db66
ripemd-160
1c93dc860a19f363e06f1eae8246bb70249fac9d
Diameter
40277812
Circumference
126536478.28187
Area
1.2741531208448E+15
Volume
3.4213399907067E+22
Surface area
5.0966124833793E+15
Circumference
126536478.28187
Perimeter
80555624
Area
405575534876836
Diagonal
28480713.996557
Surface area
2433453209261016
Volume
8.1678475727843E+21
Space diagonal
34881608.400854
Perimeter
60416718
Area
1.756193581784E+14
Altitude
17440804.200427
Surface area
1.756193581784E+14
Volume
9.6259006773565E+20
Height
9493571.3321856