20138897 is an odd 8-digits composite number following 20138896
and preceding 20138898 . In scientific notation, it is written as 2.0138897 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 18918144 positive integers (up to 20138897) that are relatively prime to 20138897.
20138897 has 8 divisors, whose sum is 21364200
The reverse of 20138897 is 79883102
Previous prime number is 1429
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred thirty-eight thousand eight hundred ninety-seven
Scientific notation
2.0138897 × 10^7
Engineering notation
2.0138897 × 10^6
Prime Factorization
17 × 1429 × 829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138897
Product of the distinct prime numbers
The prime factorization of 20138897 is 17 × 1429 × 829.
Since it has a total of 3 prime factors.
9 , 1 , 45 , 98 , 664 , 144 , 8507 , 4732 , 29614 , 48944 , 296192 , 237045 , 2873877 , 1102727 , 69571881 , 79561311 , 624595914 , 482090714 , 3498883791 , 7655301702
n×2
40277794
n×3
60416691
n×4
80555588
n×5
100694485
n÷2
10069448.5
n÷3
6712965.6666667
n÷3
5034724.25
n÷5
4027779.4
n2
405575172376609
n3
8.1678366222498E+21
n4
1.6449122044832E+29
n5
3.3126717460129E+36
2 √n
4487.638242996
3 √n
272.06868669758
4 √n
66.989836863482
5 √n
28.89396458514
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
-20138896
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 20138897 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138897) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101110010001
3
Ternary
1101220011101002
4
Quaternary
1030310232101
5
Quinary
20123421042
6
Senary
1555351345
8
Octal
114645621
10
Decimal
20138897
12
Duodecimal
68b2555
16
Hexadecimal
1334b91
20
Vigesimal
65h74h
36
Base36
bzn9t
md5
daf19e16c95b4997cf3ec202745e77a3
sha1
6ea2c0a28dbeb3d9928be7c0c6d0392f90cc4353
sha256
fec4e5bfe8dd9a634d3c8d630b95ebb1f4b7b76e459a3022aa27de7436027b61
sha512
6d08fbc4a45fad277de131ad3ac9b1ac94f0987e25ac7bf01b475fde52d3b0ab4404be4ee73d7a4ae311f9c8505e0b92130fdbb850e02e0b117e9f24690678fc
ripemd-160
e97081368cf70c506d34a94161cce56b466c817a
Diameter
40277794
Circumference
126536421.7332
Area
1.2741519820168E+15
Volume
3.4213354037575E+22
Surface area
5.0966079280671E+15
Circumference
126536421.7332
Perimeter
80555588
Area
405575172376609
Diagonal
28480701.268635
Surface area
2433451034259654
Volume
8.1678366222498E+21
Space diagonal
34881592.812396
Perimeter
60416691
Area
1.756192012112E+14
Altitude
17440796.406198
Surface area
1.756192012112E+14
Volume
9.6258877720277E+20
Height
9493567.0895449