20149561 is an odd 8-digits composite number following 20149560
and preceding 20149562 . In scientific notation, it is written as 2.0149561 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20123172 positive integers (up to 20149561) that are relatively prime to 20149561.
20149561 has 4 divisors, whose sum is 20175952
The reverse of 20149561 is 16594102
Previous prime number is 787
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred forty-nine thousand five hundred sixty-one
Scientific notation
2.0149561 × 10^7
Engineering notation
2.0149561 × 10^6
Prime Factorization
787 × 25603
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20149561
Product of the distinct prime numbers
The prime factorization of 20149561 is 787 × 25603.
Since it has a total of 2 prime factors.
6 , 2 , 28 , 12 , 432 , 747 , 1818 , 2791 , 81485 , 15446 , 52591 , 341144 , 432067 , 6078313 , 94894420 , 44850888 , 367601222 , 187376885 , 408976571 , 8600807482
n×2
40299122
n×3
60448683
n×4
80598244
n×5
100747805
n÷2
10074780.5
n÷3
6716520.3333333
n÷3
5037390.25
n÷5
4029912.2
n2
406004808492721
n3
8.1808186550174E+21
n4
1.6483990451921E+29
n5
3.321451711344E+36
2 √n
4488.8262385617
3 √n
272.11670039162
4 √n
66.9987032603
5 √n
28.897023938344
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
-20149560
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 20149561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20149561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111010100111001
3
Ternary
1101220201000001
4
Quaternary
1030313110321
5
Quinary
20124241221
6
Senary
1555513001
8
Octal
114672471
10
Decimal
20149561
12
Duodecimal
68b8761
16
Hexadecimal
1337539
20
Vigesimal
65idi1
36
Base36
bzvi1
md5
aac6f3d713fbbbe0c69ce35c974dd8fc
sha1
ed452c35dc38e06f7a69a4bbc44172f70900dc60
sha256
b803f3b2e55e9c6080f3ce95e07e94dfc0ddf49008c3e2a3ac0ae2b656ffafc9
sha512
54a2449f8cd0790a86032839f673be151950ee363894c84ac44104dee11db83fa7adf12d7e055ed307739a3ee2541436b1b473399cee92e57dcf7ef9e88f9a9c
ripemd-160
b2320a4c25974954beb60d55d5f1f35d2b3bdbbb
Diameter
40299122
Circumference
126603425.62132
Area
1.2755017236829E+15
Volume
3.4267733049271E+22
Surface area
5.1020068947315E+15
Circumference
126603425.62132
Perimeter
80598244
Area
406004808492721
Diagonal
28495782.442064
Surface area
2436028850956326
Volume
8.1808186550174E+21
Space diagonal
34900063.402208
Perimeter
60448683
Area
1.7580523910667E+14
Altitude
17450031.701104
Surface area
1.7580523910667E+14
Volume
9.641187244367E+20
Height
9498594.1473547