21887812 is an even 8-digits composite number following 21887811
and preceding 21887813 . In scientific notation, it is written as 2.1887812 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 10468040 positive integers (up to 21887812) that are relatively prime to 21887812.
21887812 has 12 divisors, whose sum is 39969216
The reverse of 21887812 is 21878812
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million eight hundred eighty-seven thousand eight hundred twelve
Scientific notation
2.1887812 × 10^7
Engineering notation
2.1887812 × 10^6
Prime Factorization
2 × 2 × 23 × 237911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10943906
Product of the distinct prime numbers
The prime factorization of 21887812 is 2 × 2 × 23 × 237911.
Since it has a total of 4 prime factors.
8 , 2 , 32 , 65 , 871 , 429 , 1127 , 7977 , 24048 , 69018 , 463330 , 403461 , 3431040 , 6656335 , 92913142 , 59683340 , 682112749 , 475641641 , 6710389313 , 6964083357
n×2
43775624
n×3
65663436
n×4
87551248
n×5
109439060
n÷2
10943906
n÷3
7295937.3333333
n÷3
5471953
n÷5
4377562.4
n2
479076314147344
n3
1.048593229771E+22
n4
2.29514114777E+29
n5
5.0235617955855E+36
2 √n
4678.4411933891
3 √n
279.72682540784
4 √n
68.399131525109
5 √n
29.379234111328
1 , 2 , 4 , 23 , 46 , 92 , 237911 , 475822 , 951644 , 5471953 , 10943906 , 21887812
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21887811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21887812 can be divided by 12 positive divisors.
The sum of these divisors (counting 21887812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011011111101101000100
3
Ternary
1112012000102201
4
Quaternary
1103133231010
5
Quinary
21100402222
6
Senary
2101044244
8
Octal
123375504
10
Decimal
21887812
12
Duodecimal
73b6684
16
Hexadecimal
14dfb44
20
Vigesimal
6gfjac
36
Base36
d14qs
md5
c8126eb81a4ad7bb53fb9646ed4d7884
sha1
bf70560131e9a931eebafcd671e9b5d75078c8e5
sha256
4c05fdb18108ed79d2008045b3d8be5ea083279052015543d0ccd5b4ace7824e
sha512
0e68f51fc836694ed5c1fdb815c8c8a437194cada531642333414f87a8460e8a4e55059f03094c82c9db89311ab2e79ddd975abde2e63d1f5b4d73993a1baff3
ripemd-160
ffa29cb364a26ce74b2dd33e809318e7fef19e86
Diameter
43775624
Circumference
137525178.76471
Area
1.5050626290342E+15
Volume
4.3923370496701E+22
Surface area
6.0202505161367E+15
Circumference
137525178.76471
Perimeter
87551248
Area
479076314147344
Diagonal
30954040.581073
Surface area
2874457884884064
Volume
1.048593229771E+22
Space diagonal
37910802.450516
Perimeter
65663436
Area
2.0744612920151E+14
Altitude
18955401.225258
Surface area
2.0744612920151E+14
Volume
1.2357789724623E+21
Height
10318013.527024