21097811 is an odd 8-digits composite number following 21097810
and preceding 21097812 . In scientific notation, it is written as 2.1097811 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 18083832 positive integers (up to 21097811) that are relatively prime to 21097811.
21097811 has 4 divisors, whose sum is 24111792
The reverse of 21097811 is 11879012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million ninety-seven thousand eight hundred eleven
Scientific notation
2.1097811 × 10^7
Engineering notation
2.1097811 × 10^6
Prime Factorization
7 × 3013973
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21097811
Product of the distinct prime numbers
The prime factorization of 21097811 is 7 × 3013973.
Since it has a total of 2 prime factors.
10 , 8 , 87 , 18 , 135 , 882 , 9776 , 1519 , 75978 , 61721 , 771870 , 902002 , 7331094 , 2536276 , 66051791 , 5420743 , 442908554 , 699112841 , 9401564962 , 6083750154
n×2
42195622
n×3
63293433
n×4
84391244
n×5
105489055
n÷2
10548905.5
n÷3
7032603.6666667
n÷3
5274452.75
n÷5
4219562.2
n2
445117628991721
n3
9.3910076092355E+21
n4
1.9812970363921E+29
n5
4.1801030408661E+36
2 √n
4593.2353521238
3 √n
276.32009264031
4 √n
67.77341183771
5 √n
29.164026185013
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21097810
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21097811 can be divided by 4 positive divisors.
The sum of these divisors (counting 21097811) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011110110101010011
3
Ternary
1110200212202102
4
Quaternary
1100132311103
5
Quinary
20400112221
6
Senary
2032111015
8
Octal
120366523
10
Decimal
21097811
12
Duodecimal
709546b
16
Hexadecimal
141ed53
20
Vigesimal
6bh4ab
36
Base36
ck76b
md5
43f4604e60b5589fb80520fbb35c69de
sha1
96603eec1bd5f67d59f4e49988a6eae1c6a4e326
sha256
d3f6038dfc93ed2630c46a28c406c02aef82880f853f9a417c363a67f04c51c6
sha512
242e6db62ef3c1ee03bb928fd0079009db1a37d463c9651b5b4c7e6770df3db569100643e33228003fce16d61c96915a0949c00314608f47e6642a9a2cf0cddd
ripemd-160
6e9094a40aa284ab5cb2921d0b3e187460904894
Diameter
42195622
Circumference
132561456.08885
Area
1.3983782732237E+15
Volume
3.933696068664E+22
Surface area
5.5935130928948E+15
Circumference
132561456.08885
Perimeter
84391244
Area
445117628991721
Diagonal
29836810.452584
Surface area
2670705773950326
Volume
9.3910076092355E+21
Space diagonal
36542480.580486
Perimeter
63293433
Area
1.9274158718956E+14
Altitude
18271240.290243
Surface area
1.9274158718956E+14
Volume
1.1067408604441E+21
Height
9945603.4841948