20138587 is an odd 8-digits composite number following 20138586
and preceding 20138588 . In scientific notation, it is written as 2.0138587 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 17261640 positive integers (up to 20138587) that are relatively prime to 20138587.
20138587 has 4 divisors, whose sum is 23015536
The reverse of 20138587 is 78583102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred thirty-eight thousand five hundred eighty-seven
Scientific notation
2.0138587 × 10^7
Engineering notation
2.0138587 × 10^6
Prime Factorization
7 × 2876941
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138587
Product of the distinct prime numbers
The prime factorization of 20138587 is 7 × 2876941.
Since it has a total of 2 prime factors.
9 , 10 , 88 , 46 , 798 , 37 , 2963 , 2193 , 17935 , 31308 , 471498 , 740906 , 334512 , 1266781 , 2396764 , 14543973 , 451729718 , 106068296 , 2389122536 , 107616554
n×2
40277174
n×3
60415761
n×4
80554348
n×5
100692935
n÷2
10069293.5
n÷3
6712862.3333333
n÷3
5034646.75
n÷5
4027717.4
n2
405562686356569
n3
8.1674594431455E+21
n4
1.6448109256476E+29
n5
3.3124167924704E+36
2 √n
4487.6037035371
3 √n
272.06729069716
4 √n
66.989579066726
5 √n
28.893875631071
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
-20138586
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 20138587 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138587) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100101001011011
3
Ternary
1101220010221121
4
Quaternary
1030310221123
5
Quinary
20123413322
6
Senary
1555350111
8
Octal
114645133
10
Decimal
20138587
12
Duodecimal
68b2337
16
Hexadecimal
1334a5b
20
Vigesimal
65h697
36
Base36
bzn17
md5
e0f026fb5f68e8e0d267abfdadaa3fc2
sha1
0495608dfc778fead3b5f20d02addb3ccc9e8504
sha256
077f9b872a30ed8ba66abe1da407fcd81855bb1828f13cca55c6c2e4a595de66
sha512
3c506eb3c9dc40bfe8b682b3fcd24b6443596d965161f4ba8114359d98d7e0b68b498390719c8ed4cfca09b600c0b3bf2081381f12f293955bf2195bf542b7b6
ripemd-160
29362c9e47f3a12f1f04d33f87f18955d273df0c
Diameter
40277174
Circumference
126534473.94576
Area
1.2741127560279E+15
Volume
3.4211774113438E+22
Surface area
5.0964510241118E+15
Circumference
126534473.94576
Perimeter
80554348
Area
405562686356569
Diagonal
28480262.862431
Surface area
2433376118139414
Volume
8.1674594431455E+21
Space diagonal
34881055.876646
Perimeter
60415761
Area
1.7561379460592E+14
Altitude
17440527.938323
Surface area
1.7561379460592E+14
Volume
9.6254432621905E+20
Height
9493420.9541435