81892212 is an even 8-digits composite number following 81892211
and preceding 81892213 . In scientific notation, it is written as 8.1892212 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors.
There are 27234816 positive integers (up to 81892212) that are relatively prime to 81892212.
81892212 has 24 divisors, whose sum is 191520000
The reverse of 81892212 is 21229818
Previous prime number is 449
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million eight hundred ninety-two thousand two hundred twelve
Scientific notation
8.1892212 × 10^7
Engineering notation
8.1892212 × 10^6
Prime Factorization
2 × 2 × 3 × 449 × 15199
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40946106
Product of the distinct prime numbers
The prime factorization of 81892212 is 2 × 2 × 3 × 449 × 15199.
Since it has a total of 5 prime factors.
8 , 1 , 49 , 19 , 125 , 29 , 101 , 6435 , 89892 , 99015 , 331072 , 378501 , 445585 , 2671998 , 9150136 , 99885407 , 296085132 , 49664455 , 9762886803 , 2053678620
n×2
163784424
n×3
245676636
n×4
327568848
n×5
409461060
n÷2
40946106
n÷3
27297404
n÷3
20473053
n÷5
16378442.4
n2
6706334386252944
n3
5.4919655730192E+23
n4
4.4974920900239E+31
n5
3.6830957570456E+39
2 √n
9049.4315843593
3 √n
434.25770617668
4 √n
95.12850037901
5 √n
38.251504412519
1 , 2 , 3 , 4 , 6 , 12 , 449 , 898 , 1347 , 1796 , 2694 , 5388 , 15199 , 30398 , 45597 , 60796 , 91194 , 182388 , 6824351 , 13648702 , 20473053 , 27297404 , 40946106 , 81892212
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81892211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81892212 can be divided by 24 positive divisors.
The sum of these divisors (counting 81892212) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100111000011001001101110100
3
Ternary
12201002112222220
4
Quaternary
10320121031310
5
Quinary
131431022322
6
Senary
12043122340
8
Octal
470311564
10
Decimal
81892212
12
Duodecimal
235133b0
16
Hexadecimal
4e19374
20
Vigesimal
15bgaac
36
Base36
1cr8fo
md5
d38a9387a7b3674cc79abc0679241bbb
sha1
df8b42bb14e7496c4ec8d5c8388f4a1b33508de8
sha256
6d298eab98e6df0cd00827e162ef811e0f5bda5fb8f876228bafe543bf4cb765
sha512
65882d2df7b132a33fd8b4c18cc1ede279f30c258c6696ffa9a5933367440739f2b42aa5bdc8e7159c64154e667ecd02f6eed4bbc4204d77a52547a061f9eff3
ripemd-160
65ef82f50a88c90c0aed5845372100b3f53c8e35
Diameter
163784424
Circumference
514543943.21084
Area
2.1068570840369E+16
Volume
2.3004691597287E+24
Surface area
8.4274283361475E+16
Circumference
514543943.21084
Perimeter
327568848
Area
6706334386252944
Diagonal
115813076.86313
Surface area
40238006317517664
Volume
5.4919655730192E+23
Space diagonal
141841471.9282
Perimeter
245676636
Area
2.9039279723841E+15
Altitude
70920735.964101
Surface area
2.9039279723841E+15
Volume
6.4723434978749E+22
Height
38604358.954378