20138997 is an odd 8-digits composite number following 20138996
and preceding 20138998 . In scientific notation, it is written as 2.0138997 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13395200 positive integers (up to 20138997) that are relatively prime to 20138997.
20138997 has 8 divisors, whose sum is 26913600
The reverse of 20138997 is 79983102
Previous prime number is 449
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred thirty-eight thousand nine hundred ninety-seven
Scientific notation
2.0138997 × 10^7
Engineering notation
2.0138997 × 10^6
Prime Factorization
3 × 449 × 14951
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138997
Product of the distinct prime numbers
The prime factorization of 20138997 is 3 × 449 × 14951.
Since it has a total of 3 prime factors.
6 , 8 , 17 , 12 , 348 , 677 , 3813 , 6443 , 32553 , 69459 , 321636 , 756630 , 189838 , 218717 , 38245392 , 11408663 , 685242454 , 267606342 , 4223745250 , 3065845453
n×2
40277994
n×3
60416991
n×4
80555988
n×5
100694985
n÷2
10069498.5
n÷3
6712999
n÷3
5034749.25
n÷5
4027799.4
n2
405579200166009
n3
8.1679582954057E+21
n4
1.644944876073E+29
n5
3.3127539924399E+36
2 √n
4487.6493847002
3 √n
272.06913701723
4 √n
66.989920023091
5 √n
28.893993279767
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138996
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138997 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138997) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101111110101
3
Ternary
1101220011111210
4
Quaternary
1030310233311
5
Quinary
20123421442
6
Senary
1555352033
8
Octal
114645765
10
Decimal
20138997
12
Duodecimal
68b2619
16
Hexadecimal
1334bf5
20
Vigesimal
65h79h
36
Base36
bzncl
md5
f0d4761facc780279968469575be51f9
sha1
770ed812f42002c3ac6f868dc5e2e3ce13edfb95
sha256
8d0c051ac7fddf67157a236e879ff6b6fe6eef10ecdac4d04cf0333a7f66ad66
sha512
b8c641794788bf6766272eb79c6b690e05133b676eac2d1612cf47c6a7ca6e335e2c5fbf8c0addd1273e0faa527f60e09c8f7cc2554efeda5627ebae34eecdb5
ripemd-160
4e6df26d088e14ca342f6fa6e5cf45b5c526c4f1
Diameter
40277994
Circumference
126537050.05173
Area
1.2741646356904E+15
Volume
3.4213863700899E+22
Surface area
5.0966585427614E+15
Circumference
126537050.05173
Perimeter
80555988
Area
405579200166009
Diagonal
28480842.689991
Surface area
2433475200996054
Volume
8.1679582954057E+21
Space diagonal
34881766.017477
Perimeter
60416991
Area
1.7562094529517E+14
Altitude
17440883.008739
Surface area
1.7562094529517E+14
Volume
9.6260311652171E+20
Height
9493614.229997