20137988 is an even 8-digits composite number following 20137987
and preceding 20137989 . In scientific notation, it is written as 2.0137988 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 9294432 positive integers (up to 20137988) that are relatively prime to 20137988.
20137988 has 12 divisors, whose sum is 37952460
The reverse of 20137988 is 88973102
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred thirty-seven thousand nine hundred eighty-eight
Scientific notation
2.0137988 × 10^7
Engineering notation
2.0137988 × 10^6
Prime Factorization
2 × 2 × 13 × 387269
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10068994
Product of the distinct prime numbers
The prime factorization of 20137988 is 2 × 2 × 13 × 387269.
Since it has a total of 4 prime factors.
1 , 7 , 65 , 49 , 55 , 350 , 5951 , 4086 , 72741 , 91682 , 690276 , 51431 , 7286959 , 393789 , 70994628 , 8574312 , 65480197 , 977824848 , 7501690540 , 2981472429
n×2
40275976
n×3
60413964
n×4
80551952
n×5
100689940
n÷2
10068994
n÷3
6712662.6666667
n÷3
5034497
n÷5
4027597.6
n2
405538560688144
n3
8.1667306686751E+21
n4
1.6446152420501E+29
n5
3.3119242009022E+36
2 √n
4487.5369636361
3 √n
272.06459322352
4 √n
66.989080928432
5 √n
28.89370374575
1 , 2 , 4 , 13 , 26 , 52 , 387269 , 774538 , 1549076 , 5034497 , 10068994 , 20137988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20137987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20137988 can be divided by 12 positive divisors.
The sum of these divisors (counting 20137988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110100100000000100
3
Ternary
1101220010010102
4
Quaternary
1030310200010
5
Quinary
20123403423
6
Senary
1555343232
8
Octal
114644004
10
Decimal
20137988
12
Duodecimal
68b1b18
16
Hexadecimal
1334804
20
Vigesimal
65h4j8
36
Base36
bzmkk
md5
066fd8225076d2580ea25d5302a0cfeb
sha1
4a836dcedd43ff86e206c958f61c823fbdcad98a
sha256
f1a32e774dafb883852a52a6654558f92fc443e19d901100040c40730ddea3d9
sha512
90ff3f4898072b4575196883b06e885e41020dc044fa880130bacb0632ff71a251751246c02d6cd140773bc0325e0eac4fd14d3437f2185824a7d4a7c9a56448
ripemd-160
08158c649ad641f88e9aa017cea1fcf45510f0dc
Diameter
40275976
Circumference
126530710.31776
Area
1.2740369630053E+15
Volume
3.4208721430075E+22
Surface area
5.096147852021E+15
Circumference
126530710.31776
Perimeter
80551952
Area
405538560688144
Diagonal
28479415.748507
Surface area
2433231364128864
Volume
8.1667306686751E+21
Space diagonal
34880018.378212
Perimeter
60413964
Area
1.7560334788505E+14
Altitude
17440009.189106
Surface area
1.7560334788505E+14
Volume
9.6245843932405E+20
Height
9493138.5828355