21031854 is an even 8-digits composite number following 21031853
and preceding 21031855 . In scientific notation, it is written as 2.1031854 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6921720 positive integers (up to 21031854) that are relatively prime to 21031854.
21031854 has 16 divisors, whose sum is 42597120
The reverse of 21031854 is 45813012
Previous prime number is 79
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million thirty-one thousand eight hundred fifty-four
Scientific notation
2.1031854 × 10^7
Engineering notation
2.1031854 × 10^6
Prime Factorization
2 × 3 × 79 × 44371
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031854
Product of the distinct prime numbers
The prime factorization of 21031854 is 2 × 3 × 79 × 44371.
Since it has a total of 4 prime factors.
2 , 6 , 16 , 64 , 572 , 769 , 2860 , 2481 , 70306 , 45400 , 28506 , 520967 , 6666044 , 1210765 , 45633435 , 70761157 , 370185933 , 19301147 , 2922552530 , 7041056995
n×2
42063708
n×3
63095562
n×4
84127416
n×5
105159270
n÷2
10515927
n÷3
7010618
n÷3
5257963.5
n÷5
4206370.8
n2
442338882677316
n3
9.3032067989924E+21
n4
1.9566368712822E+29
n5
4.1151701007823E+36
2 √n
4586.0499343117
3 √n
276.03184362687
4 √n
67.720380494439
5 √n
29.145768540917
1 , 2 , 3 , 6 , 79 , 158 , 237 , 474 , 44371 , 88742 , 133113 , 266226 , 3505309 , 7010618 , 10515927 , 21031854
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031853
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031854 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031854) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101110101110
3
Ternary
1110120112021120
4
Quaternary
1100032232232
5
Quinary
20341004404
6
Senary
2030441410
8
Octal
120165656
10
Decimal
21031854
12
Duodecimal
7063266
16
Hexadecimal
140ebae
20
Vigesimal
6b8jce
36
Base36
cisa6
md5
9f86b058bc038ffb953c5d72fc218d4b
sha1
04cea9cd4db4b0c8b9c691ec9160d665754261c7
sha256
e04a6233af57a18e3482a00ca9d0951e5b4c819ac364c6e0b63ed146f7408b9c
sha512
52493252d345e9796fa0135e3f348c2ebb77179de038154ee399875d5e15220d19885cc493e4afaa99d18b965b99fe005ecdc7bed67bc2257c05b3e8377b256c
ripemd-160
a90700390e314685cdb4673f6ac6099c86aade14
Diameter
42063708
Circumference
132147036.03555
Area
1.3896485842162E+15
Volume
3.8969181512722E+22
Surface area
5.5585943368647E+15
Circumference
132147036.03555
Perimeter
84127416
Area
442338882677316
Diagonal
29743533.168651
Surface area
2654033296063896
Volume
9.3032067989924E+21
Space diagonal
36428239.705371
Perimeter
63095562
Area
1.9153835474009E+14
Altitude
18214119.852685
Surface area
1.9153835474009E+14
Volume
1.0963934357247E+21
Height
9914511.0562169