21887892 is an even 8-digits composite number following 21887891
and preceding 21887893 . In scientific notation, it is written as 2.1887892 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 6734592 positive integers (up to 21887892) that are relatively prime to 21887892.
21887892 has 12 divisors, whose sum is 38632020
The reverse of 21887892 is 29878812
Previous prime number is 117
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million eight hundred eighty-seven thousand eight hundred ninety-two
Scientific notation
2.1887892 × 10^7
Engineering notation
2.1887892 × 10^6
Prime Factorization
2 × 2 × 117 × 46769
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10943946
Product of the distinct prime numbers
The prime factorization of 21887892 is 2 × 2 × 117 × 46769.
Since it has a total of 4 prime factors.
6 , 7 , 59 , 22 , 3 , 670 , 7238 , 4139 , 83104 , 12382 , 998076 , 373364 , 2092895 , 147365 , 35766625 , 53441200 , 658933647 , 302146157 , 1023050032 , 7477444450
n×2
43775784
n×3
65663676
n×4
87551568
n×5
109439460
n÷2
10943946
n÷3
7295964
n÷3
5471973
n÷5
4377578.4
n2
479079816203664
n3
1.0486047276446E+22
n4
2.2951747029374E+29
n5
5.0236536019025E+36
2 √n
4678.4497432376
3 √n
279.72716620815
4 √n
68.399194024766
5 √n
29.379255587529
1 , 2 , 4 , 117 , 234 , 468 , 46769 , 93538 , 187076 , 5471973 , 10943946 , 21887892
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
-21887891
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 21887892 can be divided by 12 positive divisors.
The sum of these divisors (counting 21887892) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011011111101110010100
3
Ternary
1112012000112200
4
Quaternary
1103133232110
5
Quinary
21100403032
6
Senary
2101044500
8
Octal
123375624
10
Decimal
21887892
12
Duodecimal
73b6730
16
Hexadecimal
14dfb94
20
Vigesimal
6gfjec
36
Base36
d14t0
md5
e3c99012b83efafa7d30488afeac4d12
sha1
4ad70ef7bf7df25707a5fccf6f63f8e6f11fbe52
sha256
058ad7b4aec3b941970b0d971a1b5829f967e73522b0a8143780b9f8996d30dd
sha512
f64ef5bc5525ca6b832164776795747c2d51316ac6857462b57ef7ca23c60d51d405fe9f7ae331e3aa1dfce007b0c4248a2c7be4f614836b2fe0216f1c826e36
ripemd-160
264c117d4b73d55843e6012c1f0969ced2536c28
Diameter
43775784
Circumference
137525681.41953
Area
1.5050736310686E+15
Volume
4.3923852118503E+22
Surface area
6.0202945242743E+15
Circumference
137525681.41953
Perimeter
87551568
Area
479079816203664
Diagonal
30954153.718158
Surface area
2874478897221984
Volume
1.0486047276446E+22
Space diagonal
37910941.01458
Perimeter
65663676
Area
2.0744764563638E+14
Altitude
18955470.50729
Surface area
2.0744764563638E+14
Volume
1.2357925228362E+21
Height
10318051.239386