20138515 is an odd 8-digits composite number following 20138514
and preceding 20138516 . In scientific notation, it is written as 2.0138515 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 16110808 positive integers (up to 20138515) that are relatively prime to 20138515.
20138515 has 4 divisors, whose sum is 24166224
The reverse of 20138515 is 51583102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-eight thousand five hundred fifteen
Scientific notation
2.0138515 × 10^7
Engineering notation
2.0138515 × 10^6
Prime Factorization
5 × 4027703
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138515
Product of the distinct prime numbers
The prime factorization of 20138515 is 5 × 4027703.
Since it has a total of 2 prime factors.
4 , 4 , 82 , 8 , 808 , 423 , 1050 , 4051 , 43657 , 90473 , 490027 , 532387 , 1556638 , 2262809 , 91092372 , 67542178 , 935849540 , 604566694 , 2009075880 , 2621547550
n×2
40277030
n×3
60415545
n×4
80554060
n×5
100692575
n÷2
10069257.5
n÷3
6712838.3333333
n÷3
5034628.75
n÷5
4027703
n2
405559786405225
n3
8.1673718419184E+21
n4
1.6447874034905E+29
n5
3.3123575797005E+36
2 √n
4487.5956814312
3 √n
272.06696646276
4 √n
66.989519190924
5 √n
28.893854970614
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
-20138514
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 20138515 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138515) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100101000010011
3
Ternary
1101220010211221
4
Quaternary
1030310220103
5
Quinary
20123413030
6
Senary
1555345511
8
Octal
114645023
10
Decimal
20138515
12
Duodecimal
68b2297
16
Hexadecimal
1334a13
20
Vigesimal
65h65f
36
Base36
bzmz7
md5
cb2a2c8a77e7bd217a1961377788d30d
sha1
a4f5f8044cc3b08fa22774453ae076a1b49549dc
sha256
ff41410d32e6d59c6093c66f995f2d95b542e78e9260287b40f1cdde6efeda39
sha512
51d75e361c4b0056a0e97029257e4fbc99e0467fbf42d4a7c0c3b1fc2168f35170c0956e6b16335ffeb9aa48d3ae4d14f1ee99431a61b05178298a6a2b452440
ripemd-160
c65328eaeb12b8b1bdca222734f54074e26a5400
Diameter
40277030
Circumference
126534021.55642
Area
1.2741036455621E+15
Volume
3.4211407170276E+22
Surface area
5.0964145822484E+15
Circumference
126534021.55642
Perimeter
80554060
Area
405559786405225
Diagonal
28480161.039054
Surface area
2433358718431350
Volume
8.1673718419184E+21
Space diagonal
34880931.168988
Perimeter
60415545
Area
1.7561253889016E+14
Altitude
17440465.584494
Surface area
1.7561253889016E+14
Volume
9.6253400231543E+20
Height
9493387.013018