16821091 is an odd 8-digits composite number following 16821090
and preceding 16821092 . In scientific notation, it is written as 1.6821091 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 14418072 positive integers (up to 16821091) that are relatively prime to 16821091.
16821091 has 4 divisors, whose sum is 19224112
The reverse of 16821091 is 19012861
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
sixteen million eight hundred twenty-one thousand ninety-one
Scientific notation
1.6821091 × 10^7
Engineering notation
1.6821091 × 10^6
Prime Factorization
7 × 2403013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
16821091
Product of the distinct prime numbers
The prime factorization of 16821091 is 7 × 2403013.
Since it has a total of 2 prime factors.
7 , 7 , 16 , 73 , 94 , 910 , 6433 , 8975 , 57840 , 60553 , 395486 , 626871 , 6014403 , 9662429 , 34187767 , 43953560 , 964688736 , 707115857 , 6403193584 , 8782612190
n×2
33642182
n×3
50463273
n×4
67284364
n×5
84105455
n÷2
8410545.5
n÷3
5607030.3333333
n÷3
4205272.75
n÷5
3364218.2
n2
282949102430281
n3
4.7595126003481E+21
n4
8.0060194566102E+28
n5
1.3466998182741E+36
2 √n
4101.352337949
3 √n
256.22296553979
4 √n
64.041801488942
5 √n
27.872173198892
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
-16821090
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 16821091 can be divided by 4 positive divisors.
The sum of these divisors (counting 16821091) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000000001010101101100011
3
Ternary
1011122121012101
4
Quaternary
1000022231203
5
Quinary
13301233331
6
Senary
1400311231
8
Octal
100125543
10
Decimal
16821091
12
Duodecimal
5772517
16
Hexadecimal
100ab63
20
Vigesimal
552ceb
36
Base36
a0j8j
md5
c3a89467b63329c0e098b476222c194a
sha1
e7dde7758cd8216857a9dc66e7a3162130dea103
sha256
8aa1c6b32cb187abb5269e4f6bd06423cd99f56f9fa56fc0e8861afc0951e30d
sha512
ee407c61cd6ecdeee2822ec8995b29975de49ff99170c29e5edaad885f5ed3169554f670193e81ffb68f70e914cdf6af8271d19cfb1ece794fd2b8e4e2ccb75a
ripemd-160
8ca92901833d8cc3d8167885a7bd1dcd9da7b1dc
Diameter
33642182
Circumference
105690031.82193
Area
8.889108215348E+14
Volume
1.9936599759895E+22
Surface area
3.5556432861392E+15
Circumference
105690031.82193
Perimeter
67284364
Area
282949102430281
Diagonal
23788615.026112
Surface area
1697694614581686
Volume
4.7595126003481E+21
Space diagonal
29134984.25074
Perimeter
50463273
Area
1.2252055534131E+14
Altitude
14567492.12537
Surface area
1.2252055534131E+14
Volume
5.6091393914149E+20
Height
7929538.3420373