20123989 is an odd 8-digits composite number following 20123988
and preceding 20123990 . In scientific notation, it is written as 2.0123989 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19633120 positive integers (up to 20123989) that are relatively prime to 20123989.
20123989 has 4 divisors, whose sum is 20614860
The reverse of 20123989 is 98932102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred twenty-three thousand nine hundred eighty-nine
Scientific notation
2.0123989 × 10^7
Engineering notation
2.0123989 × 10^6
Prime Factorization
41 × 490829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123989
Product of the distinct prime numbers
The prime factorization of 20123989 is 41 × 490829.
Since it has a total of 2 prime factors.
9 , 7 , 58 , 96 , 15 , 639 , 3275 , 7602 , 91638 , 88333 , 83305 , 258652 , 9912715 , 1211061 , 7548626 , 82219349 , 524425465 , 277047807 , 8067139778 , 6696696631
n×2
40247978
n×3
60371967
n×4
80495956
n×5
100619945
n÷2
10061994.5
n÷3
6707996.3333333
n÷3
5030997.25
n÷5
4024797.8
n2
404974933272121
n3
8.1497111024439E+21
n4
1.6400469657876E+29
n5
3.3004287098993E+36
2 √n
4485.9769281618
3 √n
272.00153635955
4 √n
66.977435962881
5 √n
28.889685514367
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
-20123988
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 20123989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000101010101
3
Ternary
1101212101220221
4
Quaternary
1030301011111
5
Quinary
20122431424
6
Senary
1555154341
8
Octal
114610525
10
Decimal
20123989
12
Duodecimal
68a59b1
16
Hexadecimal
1331155
20
Vigesimal
65f9j9
36
Base36
bzbrp
md5
67da99341d0babd681ebefbd7094f554
sha1
cddb8c2071f766d18c1ac16407919b961c5b3364
sha256
b0b05a8d65d82d0d3d5ab758e6e02b98851edbe6078c45058b48813a4ee476a8
sha512
f132cfd0ffb64522a940ad0b19c25b56933b81b87c0dd99b7b83bcb54a8dc5f62ebd45719dc9e69f1f9e4a24ddde86978e1961458b056b2dadb9654153828249
ripemd-160
61056037788b5750b350e75c9420a01e7d39f149
Diameter
40247978
Circumference
126442752.00664
Area
1.2722662752557E+15
Volume
3.4137430037756E+22
Surface area
5.0890651010228E+15
Circumference
126442752.00664
Perimeter
80495956
Area
404974933272121
Diagonal
28459618.172847
Surface area
2429849599632726
Volume
8.1497111024439E+21
Space diagonal
34855771.398957
Perimeter
60371967
Area
1.7535929005478E+14
Altitude
17427885.699479
Surface area
1.7535929005478E+14
Volume
9.6045266420823E+20
Height
9486539.390949