21690782 is an even 8-digits composite number following 21690781
and preceding 21690783 . In scientific notation, it is written as 2.1690782 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 32 positive divisors.
There are 10015488 positive integers (up to 21690782) that are relatively prime to 21690782.
21690782 has 32 divisors, whose sum is 35164800
The reverse of 21690782 is 28709612
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million six hundred ninety thousand seven hundred eighty-two
Scientific notation
2.1690782 × 10^7
Engineering notation
2.1690782 × 10^6
Prime Factorization
2 × 29 × 47 × 73 × 109
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21690782
Product of the distinct prime numbers
The prime factorization of 21690782 is 2 × 29 × 47 × 73 × 109.
Since it has a total of 5 prime factors.
2 , 5 , 72 , 34 , 849 , 351 , 5934 , 4998 , 89766 , 70048 , 777013 , 253201 , 3688837 , 2508717 , 81115646 , 87986001 , 867189459 , 354451721 , 420473656 , 7588199344
n×2
43381564
n×3
65072346
n×4
86763128
n×5
108453910
n÷2
10845391
n÷3
7230260.6666667
n÷3
5422695.5
n÷5
4338156.4
n2
470490023771524
n3
1.0205296538803E+22
n4
2.2136086246853E+29
n5
4.8014902111368E+36
2 √n
4657.3363632016
3 √n
278.88494461588
4 √n
68.24468010916
5 √n
29.326149345144
1 , 2 , 29 , 47 , 58 , 73 , 94 , 109 , 146 , 218 , 1363 , 2117 , 2726 , 3161 , 3431 , 4234 , 5123 , 6322 , 6862 , 7957 , 10246 , 15914 , 99499 , 148567 , 198998 , 230753 , 297134 , 373979 , 461506 , 747958 , 10845391 , 21690782
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21690781
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21690782 can be divided by 32 positive divisors.
The sum of these divisors (counting 21690782) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010010101111100110011110
3
Ternary
1111211000011022
4
Quaternary
1102233212132
5
Quinary
21023101112
6
Senary
2052524142
8
Octal
122574636
10
Decimal
21690782
12
Duodecimal
7320652
16
Hexadecimal
14af99e
20
Vigesimal
6fb6j2
36
Base36
cwwpq
md5
a46590f4fff94c8fb939fecbe1936a2b
sha1
4687a401f61f81ecb82012c0eac084d86afc4c55
sha256
9ecf4b1303498ebc7c34415a3033e59db2e86ea96f45444f98dcf2465c174568
sha512
ebdd24ed6a2f34e319152ac8294ee55982fec73156ac4f342340501f168c467df688669d4543e07e96a54edc22971582e773d695a671d0e63e33a63e0bdd2b9c
ripemd-160
1602fb3df36695a51b50278c086151441394a594
Diameter
43381564
Circumference
136287202.76364
Area
1.4780880022679E+15
Volume
4.2747846178678E+22
Surface area
5.9123520090716E+15
Circumference
136287202.76364
Perimeter
86763128
Area
470490023771524
Diagonal
30675398.082878
Surface area
2822940142629144
Volume
1.0205296538803E+22
Space diagonal
37569536.4799
Perimeter
65072346
Area
2.0372815640664E+14
Altitude
18784768.23995
Surface area
2.0372815640664E+14
Volume
1.2027057311012E+21
Height
10225132.694293