21231661 is an odd 8-digits composite number following 21231660
and preceding 21231662 . In scientific notation, it is written as 2.1231661 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 19253520 positive integers (up to 21231661) that are relatively prime to 21231661.
21231661 has 8 divisors, whose sum is 23219424
The reverse of 21231661 is 16613212
Previous prime number is 443
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million two hundred thirty-one thousand six hundred sixty-one
Scientific notation
2.1231661 × 10^7
Engineering notation
2.1231661 × 10^6
Prime Factorization
11 × 443 × 4357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21231661
Product of the distinct prime numbers
The prime factorization of 21231661 is 11 × 443 × 4357.
Since it has a total of 3 prime factors.
8 , 6 , 93 , 85 , 472 , 321 , 5461 , 3851 , 36340 , 33231 , 711093 , 272315 , 1901162 , 1762487 , 41038167 , 92961101 , 736629150 , 960954820 , 1361122971 , 9676350433
n×2
42463322
n×3
63694983
n×4
84926644
n×5
106158305
n÷2
10615830.5
n÷3
7077220.3333333
n÷3
5307915.25
n÷5
4246332.2
n2
450783428818921
n3
9.570880945101E+21
n4
2.0320569969774E+29
n5
4.3143945292503E+36
2 √n
4607.7826554646
3 √n
276.90321006771
4 √n
67.880650081334
5 √n
29.200937466973
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
-21231660
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 21231661 can be divided by 8 positive divisors.
The sum of these divisors (counting 21231661) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000111111100000101101
3
Ternary
1110221200100211
4
Quaternary
1100333200231
5
Quinary
20413403121
6
Senary
2035022421
8
Octal
120774055
10
Decimal
21231661
12
Duodecimal
713aa11
16
Hexadecimal
143f82d
20
Vigesimal
6cdj31
36
Base36
cn2gd
md5
26ea79972e16daef69fec3539a1ab8f1
sha1
8c9b618f63c6e560ce746d984052002fd096b34d
sha256
08696d9ee6de1fba39073e265f8ea34f3e96d7f1dcc571d475566574f4550e82
sha512
1ecfb45dd939ba119b15eae10ea7c408e2afc227b73073e6d7c75140e1d26e204320def35863d38d338cdbd7207992844594658e0e7ea9d82abfd3c04499dfe3
ripemd-160
755af9d2b8b671ed0f8c3faa617e3a6599634cc9
Diameter
42463322
Circumference
133402460.44222
Area
1.4161779083375E+15
Volume
4.0090412354016E+22
Surface area
5.6647116333502E+15
Circumference
133402460.44222
Perimeter
84926644
Area
450783428818921
Diagonal
30026102.937908
Surface area
2704700572913526
Volume
9.570880945101E+21
Space diagonal
36774315.581079
Perimeter
63694983
Area
1.9519495048112E+14
Altitude
18387157.790539
Surface area
1.9519495048112E+14
Volume
1.1279391363683E+21
Height
10008700.979303