20137921 is an odd 8-digits composite number following 20137920
and preceding 20137922 . In scientific notation, it is written as 2.0137921 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20127744 positive integers (up to 20137921) that are relatively prime to 20137921.
20137921 has 4 divisors, whose sum is 20148100
The reverse of 20137921 is 12973102
Previous prime number is 2689
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-seven thousand nine hundred twenty-one
Scientific notation
2.0137921 × 10^7
Engineering notation
2.0137921 × 10^6
Prime Factorization
2689 × 7489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20137921
Product of the distinct prime numbers
The prime factorization of 20137921 is 2689 × 7489.
Since it has a total of 2 prime factors.
6 , 1 , 60 , 32 , 80 , 996 , 24 , 2128 , 17513 , 60172 , 612882 , 641001 , 7640805 , 7690634 , 92677489 , 10700228 , 573902863 , 882023573 , 5986280347 , 308659584
n×2
40275842
n×3
60413763
n×4
80551684
n×5
100689605
n÷2
10068960.5
n÷3
6712640.3333333
n÷3
5034480.25
n÷5
4027584.2
n2
405535862202241
n3
8.1666491556956E+21
n4
1.6445933553212E+29
n5
3.3118691066582E+36
2 √n
4487.5294985103
3 √n
272.06429149943
4 √n
66.989025209435
5 √n
28.893684519592
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
-20137920
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 20137921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20137921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100011111000001
3
Ternary
1101220010000221
4
Quaternary
1030310133001
5
Quinary
20123403141
6
Senary
1555343041
8
Octal
114643701
10
Decimal
20137921
12
Duodecimal
68b1a81
16
Hexadecimal
13347c1
20
Vigesimal
65h4g1
36
Base36
bzmip
md5
4a5682e2134252f36daa7efaddac11a6
sha1
5b43480031883f0abb37557c26fb6dd4dc8cdeb0
sha256
a4463a16ae7d7247da66044527b682c523318abe43f290bfb3ef449a0e60cf02
sha512
29779d76d4abf16ca3cf846cfe72cc32e469b6359a9b71b3a0667c4ee9e24bd750f2c210ab5c6259c9b9d39083576c78d0a45db5638e2351ae842c1d7d1110df
ripemd-160
c9bd02e5899861f1cf51f76150a995cdc705fa11
Diameter
40275842
Circumference
126530289.34434
Area
1.2740284854618E+15
Volume
3.4208379989305E+22
Surface area
5.0961139418471E+15
Circumference
126530289.34434
Perimeter
80551684
Area
405535862202241
Diagonal
28479320.996198
Surface area
2433215173213446
Volume
8.1666491556956E+21
Space diagonal
34879902.330808
Perimeter
60413763
Area
1.7560217940638E+14
Altitude
17439951.165404
Surface area
1.7560217940638E+14
Volume
9.6244883292729E+20
Height
9493106.9987327