20154890 is an even 8-digits composite number following 20154889
and preceding 20154891 . In scientific notation, it is written as 2.0154890 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 32 positive divisors.
There are 6825024 positive integers (up to 20154890) that are relatively prime to 20154890.
20154890 has 32 divisors, whose sum is 41973120
The reverse of 20154890 is 09845102
Previous prime number is 83
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-four thousand eight hundred ninety
Scientific notation
2.0154890 × 10^7
Engineering notation
2.0154890 × 10^6
Prime Factorization
2 × 7 × 5 × 83 × 3469
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20154890
Product of the distinct prime numbers
The prime factorization of 20154890 is 2 × 7 × 5 × 83 × 3469.
Since it has a total of 5 prime factors.
9 , 9 , 54 , 41 , 295 , 142 , 1492 , 7603 , 74909 , 29022 , 286967 , 510908 , 1023760 , 8869898 , 54471489 , 63354786 , 770714411 , 849149738 , 1814834194 , 9942258006
n×2
40309780
n×3
60464670
n×4
80619560
n×5
100774450
n÷2
10077445
n÷3
6718296.6666667
n÷3
5038722.5
n÷5
4030978
n2
406219590912100
n3
8.1873111706784E+21
n4
1.6501435604079E+29
n5
3.325846194423E+36
2 √n
4489.4197843374
3 √n
272.14068738365
4 √n
67.003132645701
5 √n
28.898552268936
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 83 , 166 , 415 , 581 , 830 , 1162 , 2905 , 3469 , 5810 , 6938 , 17345 , 24283 , 34690 , 48566 , 121415 , 242830 , 287927 , 575854 , 1439635 , 2015489 , 2879270 , 4030978 , 10077445 , 20154890
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20154889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20154890 can be divided by 32 positive divisors.
The sum of these divisors (counting 20154890) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100111000101000001010
3
Ternary
1101220222022102
4
Quaternary
1030320220022
5
Quinary
20124424030
6
Senary
1555553402
8
Octal
114705012
10
Decimal
20154890
12
Duodecimal
68bb862
16
Hexadecimal
1338a0a
20
Vigesimal
65j74a
36
Base36
bzzm2
md5
75fc2874550f840b80331939d0552b01
sha1
52c4e3d54224c99a03c4ba7be1fd45dcbd0dc496
sha256
86ef2d57a41af16037c1eba9a6eee48e6010e68c3dd03659f78b82bbdfadb158
sha512
452a6f10f8df40316ee71ba5f357e983c898e1e199dda379f4ae9b98ffa8d195a0810d6d263e045cd1934f9208ab251e99d131e2a802b363eecdea94c3e04cd6
ripemd-160
54b44f54bce1a0e345123c1372d1487010632d2d
Diameter
40309780
Circumference
126636908.71582
Area
1.2761764825537E+15
Volume
3.4294928835276E+22
Surface area
5.1047059302148E+15
Circumference
126636908.71582
Perimeter
80619560
Area
406219590912100
Diagonal
28503318.786138
Surface area
2437317545472600
Volume
8.1873111706784E+21
Space diagonal
34909293.500962
Perimeter
60464670
Area
1.758982426224E+14
Altitude
17454646.750481
Surface area
1.758982426224E+14
Volume
9.6488387474518E+20
Height
9501106.262046