21492779 is an odd 8-digits composite number following 21492778
and preceding 21492780 . In scientific notation, it is written as 2.1492779 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 16747560 positive integers (up to 21492779) that are relatively prime to 21492779.
21492779 has 8 divisors, whose sum is 26796288
The reverse of 21492779 is 97729412
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million four hundred ninety-two thousand seven hundred seventy-nine
Scientific notation
2.1492779 × 10^7
Engineering notation
2.1492779 × 10^6
Prime Factorization
7 × 11 × 279127
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492779
Product of the distinct prime numbers
The prime factorization of 21492779 is 7 × 11 × 279127.
Since it has a total of 3 prime factors.
3 , 8 , 12 , 87 , 604 , 783 , 5407 , 8684 , 76299 , 83362 , 696702 , 710383 , 939677 , 4281858 , 66131267 , 64387127 , 696862661 , 292331624 , 8464635810 , 5299970062
n×2
42985558
n×3
64478337
n×4
85971116
n×5
107463895
n÷2
10746389.5
n÷3
7164259.6666667
n÷3
5373194.75
n÷5
4298555.8
n2
461939549142841
n3
9.9283646410867E+21
n4
2.1338814706229E+29
n5
4.5863042860293E+36
2 √n
4636.0305219013
3 √n
278.03375450602
4 √n
68.088402256928
5 √n
29.272412372992
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492778
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492779 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492779) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111010000101011
3
Ternary
1111102221112212
4
Quaternary
1101333100223
5
Quinary
21000232104
6
Senary
2044355335
8
Octal
121772053
10
Decimal
21492779
12
Duodecimal
7245b4b
16
Hexadecimal
147f42b
20
Vigesimal
6e6bij
36
Base36
csnxn
md5
7f957e6a4d9fa34894039c3febea07eb
sha1
936122fcb9bd16fe8352a887502099a2dd903ec3
sha256
be1b547a121ed3d41bc7046bf6688c3806dfcfa2b4f3039f8ed56516514a9fa7
sha512
74fa499529ea0f18bde056017f029432010c558d81cd90a343f492e682ee119c905b816e98298f18894d5975b720a84cac2852a74062a7bc0e77157e96102a32
ripemd-160
2831df41e207a2d1188592f359c45da10fca4fe6
Diameter
42985558
Circumference
135043113.22326
Area
1.4512258939897E+15
Volume
4.1587836558132E+22
Surface area
5.8049035759589E+15
Circumference
135043113.22326
Perimeter
85971116
Area
461939549142841
Diagonal
30395379.554888
Surface area
2771637294857046
Volume
9.9283646410867E+21
Space diagonal
37226585.223849
Perimeter
64478337
Area
2.0002569228522E+14
Altitude
18613292.611925
Surface area
2.0002569228522E+14
Volume
1.1700689939675E+21
Height
10131793.184963