20129287 is an odd 8-digits prime number following 20129286
and preceding 20129288 . In scientific notation, it is written as 2.0129287 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20129286 positive integers (up to 20129287) that are relatively prime to 20129287.
20129287 has 2 divisors, whose sum is 20129288
The reverse of 20129287 is 78292102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred twenty-nine thousand two hundred eighty-seven
Scientific notation
2.0129287 × 10^7
Engineering notation
2.0129287 × 10^6
Prime Factorization
20129287
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20129287
Product of the distinct prime numbers
The prime factorization of 20129287 is 20129287.
Since it has a total of 1 prime factors.
5 , 5 , 60 , 70 , 856 , 824 , 5762 , 3512 , 93520 , 44139 , 392584 , 487986 , 1844819 , 9613161 , 46261285 , 319416 , 446322892 , 309691889 , 6546310076 , 7179279953
n×2
40258574
n×3
60387861
n×4
80517148
n×5
100646435
n÷2
10064643.5
n÷3
6709762.3333333
n÷3
5032321.75
n÷5
4025857.4
n2
405188195128369
n3
8.1561494687509E+21
n4
1.6417747347139E+29
n5
3.3047754824404E+36
2 √n
4486.5673961281
3 √n
272.02540402144
4 √n
66.9818437797
5 √n
28.891206499479
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20129288
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10064644
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4486.5675075719
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006423
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20129287 can be divided by 2 positive divisors.
The sum of these divisors (counting 20129287) is 20129288, the average is 10064644.
Base
System
Value
2
Binary
1001100110010011000000111
3
Ternary
1101212200012011
4
Quaternary
1030302120013
5
Quinary
20123114122
6
Senary
1555235051
8
Octal
114623007
10
Decimal
20129287
12
Duodecimal
68a8a87
16
Hexadecimal
1332607
20
Vigesimal
65g347
36
Base36
bzfuv
md5
1f5641129a890e493c553c94823d6c55
sha1
e5948e80caec0f78bd932f7c9b1d64a8bc8e120a
sha256
a5c2ae091261eb05029615fa39a35997819bf2d4e23a64b04ad1f1601e652380
sha512
1220d7971bb5f71bb98c0e494df7c688163b176155b59bf6bd7889fb685ecbea3c118d613b0164aa83438b4d0291fc0c0d61caaf140466c35f45a9beaf58e200
ripemd-160
0b94f2a02742af7fd84d23b6fce7bbfdf96f4004
Diameter
40258574
Circumference
126476040.3224
Area
1.2729362571366E+15
Volume
3.4164399003478E+22
Surface area
5.0917450285464E+15
Circumference
126476040.3224
Perimeter
80517148
Area
405188195128369
Diagonal
28467110.6763
Surface area
2431129170770214
Volume
8.1561494687509E+21
Space diagonal
34864947.804136
Perimeter
60387861
Area
1.7545163514737E+14
Altitude
17432473.902068
Surface area
1.7545163514737E+14
Volume
9.6121143295414E+20
Height
9489036.8921001