21495901 is an odd 8-digits composite number following 21495900
and preceding 21495902 . In scientific notation, it is written as 2.1495901 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18364320 positive integers (up to 21495901) that are relatively prime to 21495901.
21495901 has 8 divisors, whose sum is 24647744
The reverse of 21495901 is 10959412
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred ninety-five thousand nine hundred one
Scientific notation
2.1495901 × 10^7
Engineering notation
2.1495901 × 10^6
Prime Factorization
7 × 313 × 9811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21495901
Product of the distinct prime numbers
The prime factorization of 21495901 is 7 × 313 × 9811.
Since it has a total of 3 prime factors.
8 , 4 , 27 , 17 , 415 , 538 , 8550 , 8599 , 17100 , 55200 , 988253 , 371276 , 334707 , 75864 , 93862207 , 14704760 , 373380356 , 154387504 , 8843462878 , 8151057779
n×2
42991802
n×3
64487703
n×4
85983604
n×5
107479505
n÷2
10747950.5
n÷3
7165300.3333333
n÷3
5373975.25
n÷5
4299180.2
n2
462073759801801
n3
9.9326917953973E+21
n4
2.1351215949737E+29
n5
4.5896362428517E+36
2 √n
4636.3672201412
3 √n
278.04721607151
4 √n
68.090874720048
5 √n
29.27326273452
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
-21495900
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 21495901 can be divided by 8 positive divisors.
The sum of these divisors (counting 21495901) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000000001011101
3
Ternary
1111110002211111
4
Quaternary
1102000001131
5
Quinary
21000332101
6
Senary
2044422021
8
Octal
122000135
10
Decimal
21495901
12
Duodecimal
7247911
16
Hexadecimal
148005d
20
Vigesimal
6e6jf1
36
Base36
csqcd
md5
46f5bafb32b849d253cceb71fb86d3d9
sha1
f8b790013431a4d3416c5568d0a3f41a86b94285
sha256
438dfa6d7fa301bb807e9110f2db95e86016dccbee77d892904e9da6ef7b9e48
sha512
61976b4f5b54faf9a450e40ac07a936b10b75169b0195fe073ea4630434741d01f4fb73f2a4d460bda598af00cab397f35d2d5fd9ca484b3b308b3b2969366b2
ripemd-160
09fd5b638539761f3de371cace200b412541bfa5
Diameter
42991802
Circumference
135062729.32779
Area
1.45164752921E+15
Volume
4.1605962099722E+22
Surface area
5.8065901168398E+15
Circumference
135062729.32779
Perimeter
85983604
Area
462073759801801
Diagonal
30399794.729629
Surface area
2772442558810806
Volume
9.9326917953973E+21
Space diagonal
37231992.686471
Perimeter
64487703
Area
2.0008380720527E+14
Altitude
18615996.343235
Surface area
2.0008380720527E+14
Volume
1.1705789539936E+21
Height
10133264.909876