20159987 is an odd 8-digits composite number following 20159986
and preceding 20159988 . In scientific notation, it is written as 2.0159987 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 19668240 positive integers (up to 20159987) that are relatively prime to 20159987.
20159987 has 4 divisors, whose sum is 20651736
The reverse of 20159987 is 78995102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million one hundred fifty-nine thousand nine hundred eighty-seven
Scientific notation
2.0159987 × 10^7
Engineering notation
2.0159987 × 10^6
Prime Factorization
41 × 491707
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20159987
Product of the distinct prime numbers
The prime factorization of 20159987 is 41 × 491707.
Since it has a total of 2 prime factors.
10 , 4 , 16 , 2 , 699 , 203 , 1324 , 1461 , 15146 , 97610 , 402053 , 122490 , 3594005 , 1174486 , 56484321 , 86693572 , 687723391 , 326946707 , 4417339434 , 4693159371
n×2
40319974
n×3
60479961
n×4
80639948
n×5
100799935
n÷2
10079993.5
n÷3
6719995.6666667
n÷3
5039996.75
n÷5
4031997.4
n2
406425075840169
n3
8.1935242454118E+21
n4
1.6518134227169E+29
n5
3.3300537128398E+36
2 √n
4489.9874164634
3 √n
272.16362613733
4 √n
67.007368374407
5 √n
28.900013760646
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
-20159986
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 20159987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20159987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001110111110011
3
Ternary
1101221020022012
4
Quaternary
1030321313303
5
Quinary
20130104422
6
Senary
2000033135
8
Octal
114716763
10
Decimal
20159987
12
Duodecimal
69027ab
16
Hexadecimal
1339df3
20
Vigesimal
65jjj7
36
Base36
c03jn
md5
fc060c586e77793a0d06aad27ad556d1
sha1
0ee5860d2ed22342fa3d3743331f332b33493bed
sha256
21b2424760e4601a4bc0dd7fe00df6b916ae66a7c2730ca658816e42959c8c13
sha512
d8eee70da627f0e615c966dba6ce78dff4bf97569e2afb1170b37495a9246e0b90912acaf741a017389d822c257587fba38ae993c33862cb83ab8325dba0f42f
ripemd-160
8a3df90cde07164a886bfeb74634e9f638be800c
Diameter
40319974
Circumference
126668934.11133
Area
1.2768220324941E+15
Volume
3.4320954101861E+22
Surface area
5.1072881299766E+15
Circumference
126668934.11133
Perimeter
80639948
Area
406425075840169
Diagonal
28510527.032665
Surface area
2438550455041014
Volume
8.1935242454118E+21
Space diagonal
34918121.763928
Perimeter
60479961
Area
1.759872202063E+14
Altitude
17459060.881964
Surface area
1.759872202063E+14
Volume
9.6561609262451E+20
Height
9503509.0108884