21376721 is an odd 8-digits prime number following 21376720
and preceding 21376722 . In scientific notation, it is written as 2.1376721 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 21376720 positive integers (up to 21376721) that are relatively prime to 21376721.
21376721 has 2 divisors, whose sum is 21376722
The reverse of 21376721 is 12767312
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 29 Digital Root 2
Name
twenty-one million three hundred seventy-six thousand seven hundred twenty-one
Scientific notation
2.1376721 × 10^7
Engineering notation
2.1376721 × 10^6
Prime Factorization
21376721
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21376721 Product of the distinct prime numbers
The prime factorization of 21376721 is 21376721.
Since it has a total of 1 prime factors.
10 , 10 , 64 , 9 , 992 , 58 , 6560 , 8243 , 29621 , 55219 , 50091 , 560567 , 5672578 , 3727792 , 53180384 , 24218337 , 226084473 , 216620860 , 5758801784 , 5768351074
n×2
42753442
n×3
64130163
n×4
85506884
n×5
106883605
n÷2
10688360.5
n÷3
7125573.6666667
n÷3
5344180.25
n÷5
4275344.2
n2
456964200711841
n3
9.768396225605E+21
n4
2.0881628073221E+29
n5
4.4638073734702E+36
2 √n4623.4966205243
3 √n277.53240321778
4 √n67.996298579587
5 √n29.240730481389
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21376722 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10688361 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4623.4967286676 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999064403 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21376721 can be divided by 2 positive divisors.
The sum of these divisors (counting 21376721) is 21376722, the average is 10688361.
Base
System
Value
2
Binary
1010001100010111011010001
3
Ternary
1111020001100102
4
Quaternary
1101202323101
5
Quinary
20433023341
6
Senary
2042102145
8
Octal
121427321
10
Decimal
21376721
12
Duodecimal
71aa955
16
Hexadecimal
1462ed1
20
Vigesimal
6dc1g1
36
Base36
cq6dt
md5
dcc0a19a1d6a8967fba024c87c6aadcf
sha1
99940560e8fbae6c22908b7717a931511dd7906f
sha256
0e1d829d6bceee94fed5b40577b9322778364657af1893dc35c2b8aa99c804b3
sha512
81de50829ba9e723a2c801fa14a1a1bb80ca759b7e235b389b0951053df04275cde6de961fa965680accef8fb18771a93ad8f010abf95552531a3321fab2bb3a
ripemd-160
c34c33b4e8f1c6af449d2b2ccf17cd4d9732117b
Diameter
42753442
Circumference
134313899.30288
Area
1.4355953759099E+15
Volume
4.0917762426287E+22
Surface area
5.7423815036394E+15
Circumference
134313899.30288
Perimeter
85506884
Area
456964200711841
Diagonal
30231248.757266
Surface area
2741785204271046
Volume
9.768396225605E+21
Space diagonal
37025566.871225
Perimeter
64130163
Area
1.9787130321825E+14
Altitude
18512783.435612
Surface area
1.9787130321825E+14
Volume
1.1512165354071E+21
Height
10077082.919089