21508717 is an odd 8-digits prime number following 21508716
and preceding 21508718 . In scientific notation, it is written as 2.1508717 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21508716 positive integers (up to 21508717) that are relatively prime to 21508717.
21508717 has 2 divisors, whose sum is 21508718
The reverse of 21508717 is 71780512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred eight thousand seven hundred seventeen
Scientific notation
2.1508717 × 10^7
Engineering notation
2.1508717 × 10^6
Prime Factorization
21508717
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21508717
Product of the distinct prime numbers
The prime factorization of 21508717 is 21508717.
Since it has a total of 1 prime factors.
4 , 8 , 36 , 69 , 306 , 511 , 4564 , 824 , 73542 , 98453 , 979478 , 395679 , 6120392 , 668245 , 55617421 , 70295356 , 199905275 , 321347548 , 5343320758 , 3276643748
n×2
43017434
n×3
64526151
n×4
86034868
n×5
107543585
n÷2
10754358.5
n÷3
7169572.3333333
n÷3
5377179.25
n÷5
4301743.4
n2
462624906986089
n3
9.9504682015151E+21
n4
2.1402180456389E+29
n5
4.603334426194E+36
2 √n
4637.7491307745
3 √n
278.10246296363
4 √n
68.101021510507
5 √n
29.276752485394
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21508718
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10754359
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4637.7492385855
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999070144
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21508717 can be divided by 2 positive divisors.
The sum of these divisors (counting 21508717) is 21508718, the average is 10754359.
Base
System
Value
2
Binary
1010010000011001001101101
3
Ternary
1111110202102011
4
Quaternary
1102003021231
5
Quinary
21001234332
6
Senary
2045001221
8
Octal
122031155
10
Decimal
21508717
12
Duodecimal
7253211
16
Hexadecimal
148326d
20
Vigesimal
6e8bfh
36
Base36
ct08d
md5
0901c0069d8001f0ba82791310adcb19
sha1
3efa4698e29973ae07a1b97b421bf709185c472c
sha256
703c2ae8928be285004c562008c029761dee2a0b85833f5cc80122259e0e94e1
sha512
d07de438c10fc2bd73823191efbead6aa703b82ba362a6166bd8f685bc4e209486920a7b0b41301824dfefc4d4a0a54f27e2cc3e8568895bc3e7d2d35f775f73
ripemd-160
9a97b439f94402d2da87fd31f0684923a531a3f2
Diameter
43017434
Circumference
135143254.63068
Area
1.4533790091552E+15
Volume
4.1680423735545E+22
Surface area
5.8135160366206E+15
Circumference
135143254.63068
Perimeter
86034868
Area
462624906986089
Diagonal
30417919.290645
Surface area
2775749441916534
Volume
9.9504682015151E+21
Space diagonal
37254190.64962
Perimeter
64526151
Area
2.0032246093668E+14
Altitude
18627095.32481
Surface area
2.0032246093668E+14
Volume
1.1726739235454E+21
Height
10139306.430215