20158491 is an odd 8-digits composite number following 20158490
and preceding 20158492 . In scientific notation, it is written as 2.0158491 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13238280 positive integers (up to 20158491) that are relatively prime to 20158491.
20158491 has 8 divisors, whose sum is 27279424
The reverse of 20158491 is 19485102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred fifty-eight thousand four hundred ninety-one
Scientific notation
2.0158491 × 10^7
Engineering notation
2.0158491 × 10^6
Prime Factorization
3 × 67 × 100291
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20158491
Product of the distinct prime numbers
The prime factorization of 20158491 is 3 × 67 × 100291.
Since it has a total of 3 prime factors.
4 , 1 , 70 , 63 , 651 , 855 , 1385 , 6692 , 84622 , 1551 , 471028 , 94134 , 920277 , 3963481 , 44926119 , 85006674 , 430995460 , 900470887 , 2751956801 , 1001731502
n×2
40316982
n×3
60475473
n×4
80633964
n×5
100792455
n÷2
10079245.5
n÷3
6719497
n÷3
5039622.75
n÷5
4031698.2
n2
406364759397081
n3
8.1917003450232E+21
n4
1.6513231767985E+29
n5
3.3288183397583E+36
2 √n
4489.8208204783
3 √n
272.15689387677
4 √n
67.006125245967
5 √n
28.899584834735
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20158490
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20158491 can be divided by 8 positive divisors.
The sum of these divisors (counting 20158491) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001100000011011
3
Ternary
1101221011020210
4
Quaternary
1030321200123
5
Quinary
20130032431
6
Senary
2000022203
8
Octal
114714033
10
Decimal
20158491
12
Duodecimal
6901963
16
Hexadecimal
133981b
20
Vigesimal
65jg4b
36
Base36
c02e3
md5
722cb6dc247bb322bfbe623a1e0841ca
sha1
be200cade643ca653ac9382b64ab11f60a2858ba
sha256
96e1bc8b0fb814cc03b26d6086f2875ece818129120b6ba0cc160386d87036df
sha512
0a5e9d419ea90ee445367703bccda5f8cccb8400b78e9ce022a4d9be24d81b30c45f0b8458f264871de45417bf3d21d2e8e2b24b0b3e52fd6eb866c7b3f109d7
ripemd-160
4c02020bb9073a0162b338cdfa66c5b4759bff22
Diameter
40316982
Circumference
126659534.46611
Area
1.2766325427997E+15
Volume
3.4313314165779E+22
Surface area
5.1065301711986E+15
Circumference
126659534.46611
Perimeter
80633964
Area
406364759397081
Diagonal
28508411.369176
Surface area
2438188556382486
Volume
8.1917003450232E+21
Space diagonal
34915530.61592
Perimeter
60475473
Area
1.7596110242031E+14
Altitude
17457765.30796
Surface area
1.7596110242031E+14
Volume
9.6540114390235E+20
Height
9502803.7897253