21102949 is an odd 8-digits composite number following 21102948
and preceding 21102950 . In scientific notation, it is written as 2.1102949 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17912016 positive integers (up to 21102949) that are relatively prime to 21102949.
21102949 has 8 divisors, whose sum is 24352640
The reverse of 21102949 is 94920112
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred two thousand nine hundred forty-nine
Scientific notation
2.1102949 × 10^7
Engineering notation
2.1102949 × 10^6
Prime Factorization
7 × 103 × 29269
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21102949
Product of the distinct prime numbers
The prime factorization of 21102949 is 7 × 103 × 29269.
Since it has a total of 3 prime factors.
1 , 3 , 89 , 28 , 971 , 858 , 4676 , 2984 , 37028 , 59257 , 337857 , 482397 , 3212221 , 9898174 , 91007823 , 68207591 , 933647933 , 437482822 , 27512504 , 61106272
n×2
42205898
n×3
63308847
n×4
84411796
n×5
105514745
n÷2
10551474.5
n÷3
7034316.3333333
n÷3
5275737.25
n÷5
4220589.8
n2
445334456496601
n3
9.3978703233905E+21
n4
1.9832277814312E+29
n5
4.1851954726926E+36
2 √n
4593.7946188309
3 √n
276.34252178239
4 √n
67.777537715905
5 √n
29.165446523567
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
-21102948
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 21102949 can be divided by 8 positive divisors.
The sum of these divisors (counting 21102949) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100000000101100101
3
Ternary
1110201010210201
4
Quaternary
1100200011211
5
Quinary
20400243244
6
Senary
2032150501
8
Octal
120400545
10
Decimal
21102949
12
Duodecimal
7098431
16
Hexadecimal
1420165
20
Vigesimal
6bhh79
36
Base36
ckb51
md5
64b70c97e9e784dd5e75a7d0493eace3
sha1
2191b85c9adb85b70437b48549675d3d4c29d43c
sha256
555abe5e2048b2dff682edc31a7c208abc2b988940b54944e864af5a91d7af79
sha512
d708f155a7bc08004f43cbc3a786461bbb0281fd8fac542f4671439e6c55f1f6dd5c4f6991f3fab7aaede65c9ebeb3125e3b76e16eb15019b6269ce23eb4e12e
ripemd-160
d3511ea3e89b32c072ee7e45bbaa12f4ccf74860
Diameter
42205898
Circumference
132593739.09496
Area
1.3990594569201E+15
Volume
3.9365707156471E+22
Surface area
5.5962378276805E+15
Circumference
132593739.09496
Perimeter
84411796
Area
445334456496601
Diagonal
29844076.681868
Surface area
2672006738979606
Volume
9.3978703233905E+21
Space diagonal
36551379.857535
Perimeter
63308847
Area
1.928354762533E+14
Altitude
18275689.928767
Surface area
1.928354762533E+14
Volume
1.1075496390635E+21
Height
9948025.5606226