21006937 is an odd 8-digits composite number following 21006936
and preceding 21006938 . In scientific notation, it is written as 2.1006937 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 17799936 positive integers (up to 21006937) that are relatively prime to 21006937.
21006937 has 12 divisors, whose sum is 24716340
The reverse of 21006937 is 73960012
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million six thousand nine hundred thirty-seven
Scientific notation
2.1006937 × 10^7
Engineering notation
2.1006937 × 10^6
Prime Factorization
7 × 7 × 89 × 4817
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3000991
Product of the distinct prime numbers
The prime factorization of 21006937 is 7 × 7 × 89 × 4817.
Since it has a total of 4 prime factors.
5 , 3 , 9 , 13 , 758 , 418 , 6164 , 239 , 42159 , 91831 , 659501 , 410583 , 5530467 , 2198702 , 38847406 , 89857267 , 230211796 , 780242890 , 8161759278 , 9966351347
n×2
42013874
n×3
63020811
n×4
84027748
n×5
105034685
n÷2
10503468.5
n÷3
7002312.3333333
n÷3
5251734.25
n÷5
4201387.4
n2
441291402121969
n3
9.2701806830179E+21
n4
1.9473810158677E+29
n5
4.0908510315329E+36
2 √n
4583.332521212
3 √n
275.92279311433
4 √n
67.70031404072
5 √n
29.138859311603
1 , 7 , 49 , 89 , 623 , 4361 , 4817 , 33719 , 236033 , 428713 , 3000991 , 21006937
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21006936
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21006937 can be divided by 12 positive divisors.
The sum of these divisors (counting 21006937) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000001000101001011001
3
Ternary
1110112021002201
4
Quaternary
1100020221121
5
Quinary
20334210222
6
Senary
2030130201
8
Octal
120105131
10
Decimal
21006937
12
Duodecimal
7050961
16
Hexadecimal
1408a59
20
Vigesimal
6b5h6h
36
Base36
ci921
md5
5675c4d1e8c98be6e49255eacc5b32de
sha1
e8660aa16624365e5fb93f17d9c21a903703d616
sha256
15e2d8ae7f1f7db81a9e5971ad8fe8980ff863444c1392de357682cd05624a2d
sha512
d36a310a2fa6a409dc2ad48713d5a7a8dc3a02309efe661a877ec2a4ec072510660ec71b5547febaef4962c528227db21c7e9c5190e7e7cefb0205b676131213
ripemd-160
b10e1bb5a9288b567ba9ae3a89b0bb1c28622836
Diameter
42013874
Circumference
131990477.90725
Area
1.3863578269987E+15
Volume
3.8830842041625E+22
Surface area
5.5454313079949E+15
Circumference
131990477.90725
Perimeter
84027748
Area
441291402121969
Diagonal
29708295.209317
Surface area
2647748412731814
Volume
9.2701806830179E+21
Space diagonal
36385082.195399
Perimeter
63020811
Area
1.9108478235464E+14
Altitude
18192541.097699
Surface area
1.9108478235464E+14
Volume
1.0925012706311E+21
Height
9902765.0697724