21014781 is an odd 8-digits composite number following 21014780
and preceding 21014782 . In scientific notation, it is written as 2.1014781 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 13569264 positive integers (up to 21014781) that are relatively prime to 21014781.
21014781 has 16 divisors, whose sum is 28913664
The reverse of 21014781 is 18741012
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million fourteen thousand seven hundred eighty-one
Scientific notation
2.1014781 × 10^7
Engineering notation
2.1014781 × 10^6
Prime Factorization
3 × 47 × 103 × 1447
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21014781
Product of the distinct prime numbers
The prime factorization of 21014781 is 3 × 47 × 103 × 1447.
Since it has a total of 4 prime factors.
7 , 1 , 59 , 19 , 257 , 794 , 5143 , 5050 , 90569 , 16952 , 904751 , 838021 , 4551892 , 5923974 , 54574182 , 34805177 , 705149273 , 348462493 , 1708530030 , 5605615679
n×2
42029562
n×3
63044343
n×4
84059124
n×5
105073905
n÷2
10507390.5
n÷3
7004927
n÷3
5253695.25
n÷5
4202956.2
n2
441621020477961
n3
9.2805690303409E+21
n4
1.95029125728E+29
n5
4.0984943657953E+36
2 √n
4584.1881505889
3 √n
275.95713207352
4 √n
67.706632988127
5 √n
29.141035079366
1 , 3 , 47 , 103 , 141 , 309 , 1447 , 4341 , 4841 , 14523 , 68009 , 149041 , 204027 , 447123 , 7004927 , 21014781
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21014780
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21014781 can be divided by 16 positive divisors.
The sum of these divisors (counting 21014781) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001010100011111101
3
Ternary
1110112122212020
4
Quaternary
1100022203331
5
Quinary
20334433111
6
Senary
2030230353
8
Octal
120124375
10
Decimal
21014781
12
Duodecimal
70553b9
16
Hexadecimal
140a8fd
20
Vigesimal
6b6gj1
36
Base36
cif3x
md5
2eecfd37f6dd29c6239bbcdb45199669
sha1
d09fed198ce0eab6bc25d5465b845a01d5a8407e
sha256
2e8f6bb1ff731e5b325688e1d269c5ec688bb720a0346822d20ae106c919e061
sha512
39c16dd03a14555719e0976f54cc443e79415146110808c4ccff27a51205534b6391b733b69ae064a07fb0f4c3a908fe95cf82f1f86c7eca667627a23cf4116c
ripemd-160
f12a56b0272c2d0ad27bb66f6aa10be849898d78
Diameter
42029562
Circumference
132039763.2128
Area
1.3873933536044E+15
Volume
3.8874356649136E+22
Surface area
5.5495734144176E+15
Circumference
132039763.2128
Perimeter
84059124
Area
441621020477961
Diagonal
29719388.3005
Surface area
2649726122867766
Volume
9.2805690303409E+21
Space diagonal
36398668.401933
Perimeter
63044343
Area
1.9122751128956E+14
Altitude
18199334.200967
Surface area
1.9122751128956E+14
Volume
1.093725549104E+21
Height
9906462.7668335