21863721 is an odd 8-digits composite number following 21863720
and preceding 21863722 . In scientific notation, it is written as 2.1863721 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13250720 positive integers (up to 21863721) that are relatively prime to 21863721.
21863721 has 8 divisors, whose sum is 31801824
The reverse of 21863721 is 12736812
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eight hundred sixty-three thousand seven hundred twenty-one
Scientific notation
2.1863721 × 10^7
Engineering notation
2.1863721 × 10^6
Prime Factorization
3 × 11 × 662537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21863721
Product of the distinct prime numbers
The prime factorization of 21863721 is 3 × 11 × 662537.
Since it has a total of 3 prime factors.
2 , 2 , 41 , 81 , 645 , 905 , 9027 , 4510 , 2047 , 54065 , 822323 , 321195 , 6400756 , 498829 , 45622670 , 84909560 , 262461481 , 427191994 , 1147452018 , 3343879921
n×2
43727442
n×3
65591163
n×4
87454884
n×5
109318605
n÷2
10931860.5
n÷3
7287907
n÷3
5465930.25
n÷5
4372744.2
n2
478022295965841
n3
1.0451346110777E+22
n4
2.2850531544045E+29
n5
4.9959764638071E+36
2 √n
4675.8658021804
3 √n
279.62415985632
4 √n
68.380302735367
5 √n
29.37276396308
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
-21863720
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 21863721 can be divided by 8 positive divisors.
The sum of these divisors (counting 21863721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011011001110100101001
3
Ternary
1112010210101110
4
Quaternary
1103121310221
5
Quinary
21044114341
6
Senary
2100340533
8
Octal
123316451
10
Decimal
21863721
12
Duodecimal
73a4749
16
Hexadecimal
14d9d29
20
Vigesimal
6gcj61
36
Base36
d0m5l
md5
404223fafd241bfd9d5c600a2d38f55c
sha1
ef64728e022f01cc61694ac9838c5ba97bb5a625
sha256
967d53656e82cb916f8db68d0c8a23543c02e32cfc1e6694b87e0be05eadcb54
sha512
dbcf978d2152fd66404743822f43ae2dd9f3c9aca950483a42f969d441b1a9479a08d0615ed847aab34473da83304f5baf32cdba34490af9ada3590734475542
ripemd-160
7940c8c791a099ec7934addf5a71ffa4f34e4753
Diameter
43727442
Circumference
137373810.54747
Area
1.5017513332584E+15
Volume
4.3778496215653E+22
Surface area
6.0070053330336E+15
Circumference
137373810.54747
Perimeter
87454884
Area
478022295965841
Diagonal
30919970.762141
Surface area
2868133775795046
Volume
1.0451346110777E+22
Space diagonal
37869075.614511
Perimeter
65591163
Area
2.0698972594089E+14
Altitude
18934537.807255
Surface area
2.0698972594089E+14
Volume
1.231702951243E+21
Height
10306656.920714