21885890 is an even 8-digits composite number following 21885889
and preceding 21885891 . In scientific notation, it is written as 2.1885890 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 8080896 positive integers (up to 21885890) that are relatively prime to 21885890.
21885890 has 16 divisors, whose sum is 42425208
The reverse of 21885890 is 09858812
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million eight hundred eighty-five thousand eight hundred ninety
Scientific notation
2.1885890 × 10^7
Engineering notation
2.1885890 × 10^6
Prime Factorization
2 × 5 × 13 × 168353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21885890
Product of the distinct prime numbers
The prime factorization of 21885890 is 2 × 5 × 13 × 168353.
Since it has a total of 4 prime factors.
8 , 10 , 57 , 82 , 416 , 818 , 121 , 5180 , 1566 , 7049 , 982429 , 787908 , 9658428 , 213779 , 40921451 , 77294450 , 371229340 , 720975067 , 4891234374 , 8020969614
n×2
43771780
n×3
65657670
n×4
87543560
n×5
109429450
n÷2
10942945
n÷3
7295296.6666667
n÷3
5471472.5
n÷5
4377178
n2
478992181092100
n3
1.0483170186242E+22
n4
2.2943350954737E+29
n5
5.0213565522676E+36
2 √n
4678.2357785815
3 √n
279.71863743096
4 √n
68.397629919329
5 √n
29.378718126711
1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 , 168353 , 336706 , 841765 , 1683530 , 2188589 , 4377178 , 10942945 , 21885890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21885889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21885890 can be divided by 16 positive divisors.
The sum of these divisors (counting 21885890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011111001111000010
3
Ternary
1112011220210112
4
Quaternary
1103133033002
5
Quinary
21100322030
6
Senary
2101031322
8
Octal
123371702
10
Decimal
21885890
12
Duodecimal
73b5542
16
Hexadecimal
14df3c2
20
Vigesimal
6gfeea
36
Base36
d139e
md5
4ececaf03cce9dd4290f3ecc07f5fc7a
sha1
ab180ff13e2e212aa03d02b8ac8c801dd72a6226
sha256
1adf61711867b509da74dd41746a4bdfff322e5afd11995b2ad36b33360adebe
sha512
fcbd9ef030308f7f36d07684ac266b5a7fe615d3f7291b5d7af2b1caa9bd203d491d77479b4f0b52fb45f6419d9327e40a3bb6e11e77204078b9e07786384451
ripemd-160
628f3aa0e42591491d1e6c153a0f1a5e8e393f5f
Diameter
43771780
Circumference
137513102.48255
Area
1.5047983172459E+15
Volume
4.3911800591238E+22
Surface area
6.0191932689836E+15
Circumference
137513102.48255
Perimeter
87543560
Area
478992181092100
Diagonal
30951322.462606
Surface area
2873953086552600
Volume
1.0483170186242E+22
Space diagonal
37907473.448864
Perimeter
65657670
Area
2.0740969851994E+14
Altitude
18953736.724432
Surface area
2.0740969851994E+14
Volume
1.235453454504E+21
Height
10317107.487535