21131678 is an even 8-digits composite number following 21131677
and preceding 21131679 . In scientific notation, it is written as 2.1131678 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 10472224 positive integers (up to 21131678) that are relatively prime to 21131678.
21131678 has 8 divisors, whose sum is 31978368
The reverse of 21131678 is 87613112
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million one hundred thirty-one thousand six hundred seventy-eight
Scientific notation
2.1131678 × 10^7
Engineering notation
2.1131678 × 10^6
Prime Factorization
2 × 113 × 93503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131678
Product of the distinct prime numbers
The prime factorization of 21131678 is 2 × 113 × 93503.
Since it has a total of 3 prime factors.
1 , 6 , 99 , 42 , 423 , 888 , 2359 , 1256 , 16360 , 86952 , 4257 , 383562 , 8498680 , 4289482 , 13080915 , 76428196 , 842398395 , 792202104 , 8216704672 , 7767486280
n×2
42263356
n×3
63395034
n×4
84526712
n×5
105658390
n÷2
10565839
n÷3
7043892.6666667
n÷3
5282919.5
n÷5
4226335.6
n2
446547815095684
n3
9.4363046402055E+21
n4
1.9940495116673E+29
n5
4.213761219661E+36
2 √n
4596.9204909374
3 √n
276.46786673397
4 √n
67.800593588385
5 √n
29.173383217256
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
-21131677
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 21131678 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131678) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111000110011110
3
Ternary
1110202121012202
4
Quaternary
1100213012132
5
Quinary
20402203203
6
Senary
2032531502
8
Octal
120470636
10
Decimal
21131678
12
Duodecimal
70b0b92
16
Hexadecimal
142719e
20
Vigesimal
6c193i
36
Base36
ckxb2
md5
882e758cc9d511c4e2138ee179765454
sha1
6f21400d20e1f90d785c2cc39d1c1849dd52a0d7
sha256
b43e7eb54e792c2e5139307918ab22cdc545917b7f317da8700a10915281f952
sha512
7a96d3dd6d3cd2248d643cc31e9804ae1aef5c152a8b652bf28ca8542c6b057cc4e0940135cc2d939f93ce9e69ae08223e57672a838812294d959820832ad8d1
ripemd-160
7cf8f43e853cbe77e980c577d22f4f9eb016390a
Diameter
42263356
Circumference
132774248.72565
Area
1.4028713353812E+15
Volume
3.9526700446273E+22
Surface area
5.6114853415247E+15
Circumference
132774248.72565
Perimeter
84526712
Area
446547815095684
Diagonal
29884705.623301
Surface area
2679286890574104
Volume
9.4363046402055E+21
Space diagonal
36601139.945185
Perimeter
63395034
Area
1.9336087593865E+14
Altitude
18300569.972593
Surface area
1.9336087593865E+14
Volume
1.1120791667386E+21
Height
9961568.5411004