21861047 is an odd 8-digits composite number following 21861046
and preceding 21861048 . In scientific notation, it is written as 2.1861047 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20179416 positive integers (up to 21861047) that are relatively prime to 21861047.
21861047 has 4 divisors, whose sum is 23542680
The reverse of 21861047 is 74016812
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million eight hundred sixty-one thousand forty-seven
Scientific notation
2.1861047 × 10^7
Engineering notation
2.1861047 × 10^6
Prime Factorization
13 × 1681619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21861047
Product of the distinct prime numbers
The prime factorization of 21861047 is 13 × 1681619.
Since it has a total of 2 prime factors.
3 , 9 , 15 , 33 , 318 , 295 , 9906 , 2093 , 38277 , 96354 , 622282 , 912928 , 8653320 , 6683144 , 34672719 , 33136210 , 339709744 , 360818008 , 880950441 , 6569847367
n×2
43722094
n×3
65583141
n×4
87444188
n×5
109305235
n÷2
10930523.5
n÷3
7287015.6666667
n÷3
5465261.75
n÷5
4372209.4
n2
477905375936209
n3
1.0447511884894E+22
n4
2.2839354834873E+29
n5
4.9929220949483E+36
2 √n
4675.5798570872
3 √n
279.61275976134
4 √n
68.378211859387
5 √n
29.372045452141
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
-21861046
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 21861047 can be divided by 4 positive divisors.
The sum of these divisors (counting 21861047) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011001001010110111
3
Ternary
1112010122201102
4
Quaternary
1103121022313
5
Quinary
21044023142
6
Senary
2100320315
8
Octal
123311267
10
Decimal
21861047
12
Duodecimal
73a309b
16
Hexadecimal
14d92b7
20
Vigesimal
6gccc7
36
Base36
d0k3b
md5
f08e0220c68dfdb6eb7ef85d93834dbe
sha1
747b5c0ecb21a486af0ba9e34d3db4dd5d570fe6
sha256
26e1b1ababaf72de7596f0787ac8451bbe2158fb2226ee1983aff30fe3c79952
sha512
df1eedb2dc9b38352ae718cbaf85cd1fc2665b4f5802e07f930a5975d47e70cb74c7c58a5959433a58ab3eb6dcf3e7431c96b07251304ac18389a2c7bd027880
ripemd-160
dab66b34a928a3088720db5fe741b71dad2fbbf2
Diameter
43722094
Circumference
137357009.30996
Area
1.5013840181523E+15
Volume
4.3762435447834E+22
Surface area
6.005536072609E+15
Circumference
137357009.30996
Perimeter
87444188
Area
477905375936209
Diagonal
30916189.155076
Surface area
2867432255617254
Volume
1.0447511884894E+22
Space diagonal
37864444.110651
Perimeter
65583141
Area
2.0693909808295E+14
Altitude
18932222.055326
Surface area
2.0693909808295E+14
Volume
1.2312510833893E+21
Height
10305396.385025