21881277 is an odd 8-digits composite number following 21881276
and preceding 21881278 . In scientific notation, it is written as 2.1881277 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 13028400 positive integers (up to 21881277) that are relatively prime to 21881277.
21881277 has 24 divisors, whose sum is 27195840
The reverse of 21881277 is 77218812
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million eight hundred eighty-one thousand two hundred seventy-seven
Scientific notation
2.1881277 × 10^7
Engineering notation
2.1881277 × 10^6
Prime Factorization
9 × 11 × 11 × 71 × 283
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1989207
Product of the distinct prime numbers
The prime factorization of 21881277 is 9 × 11 × 11 × 71 × 283.
Since it has a total of 5 prime factors.
1 , 8 , 68 , 100 , 665 , 505 , 967 , 5044 , 97724 , 76488 , 973753 , 233799 , 9902639 , 7414860 , 37297746 , 12328412 , 942658969 , 989434822 , 1584695568 , 8693529178
n×2
43762554
n×3
65643831
n×4
87525108
n×5
109406385
n÷2
10940638.5
n÷3
7293759
n÷3
5470319.25
n÷5
4376255.4
n2
478790283150729
n3
1.047654281053E+22
n4
2.2924013523956E+29
n5
5.0160668986942E+36
2 √n
4677.7427248621
3 √n
279.69898347823
4 √n
68.39402550561
5 √n
29.377479562008
1 , 9 , 11 , 71 , 99 , 121 , 283 , 639 , 781 , 1089 , 2547 , 3113 , 7029 , 8591 , 20093 , 28017 , 34243 , 77319 , 180837 , 221023 , 308187 , 1989207 , 2431253 , 21881277
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
-21881276
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 21881277 can be divided by 24 positive divisors.
The sum of these divisors (counting 21881277) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011011110000110111101
3
Ternary
1112011200110200
4
Quaternary
1103132012331
5
Quinary
21100200102
6
Senary
2100554113
8
Octal
123360675
10
Decimal
21881277
12
Duodecimal
73b2939
16
Hexadecimal
14de1bd
20
Vigesimal
6gf33h
36
Base36
d0zp9
md5
9038c6620b1a14ddad8b4f15032c6232
sha1
50eaa8c9171b4974dcc008d9200c7f22f2ffae91
sha256
e188cc520bd80d85a354df8fcbfa8d2d08fabd177d16fcc1c7038a042ef949dc
sha512
9ae9e5aef39c2e4eababcfae188120c900be4adc8f2557f6990124875cf44692342873096b0a2b2190b2f7c76da35150bff525df16b4437014b77502fca5fc4f
ripemd-160
35f3f0307e3b4955c24975b5ebfa960c04adbacf
Diameter
43762554
Circumference
137484118.14873
Area
1.5041640361565E+15
Volume
4.3884039904771E+22
Surface area
6.016656144626E+15
Circumference
137484118.14873
Perimeter
87525108
Area
478790283150729
Diagonal
30944798.695442
Surface area
2872741698904374
Volume
1.047654281053E+22
Space diagonal
37899483.498488
Perimeter
65643831
Area
2.0732227414684E+14
Altitude
18949741.749244
Surface area
2.0732227414684E+14
Volume
1.2346724107861E+21
Height
10314932.898481