21032978 is an even 8-digits composite number following 21032977
and preceding 21032979 . In scientific notation, it is written as 2.1032978 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 9817920 positive integers (up to 21032978) that are relatively prime to 21032978.
21032978 has 16 divisors, whose sum is 33675264
The reverse of 21032978 is 87923012
Previous prime number is 127
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million thirty-two thousand nine hundred seventy-eight
Scientific notation
2.1032978 × 10^7
Engineering notation
2.1032978 × 10^6
Prime Factorization
2 × 17 × 127 × 4871
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21032978
Product of the distinct prime numbers
The prime factorization of 21032978 is 2 × 17 × 127 × 4871.
Since it has a total of 4 prime factors.
4 , 3 , 40 , 90 , 759 , 467 , 227 , 4412 , 35477 , 63729 , 737530 , 48603 , 7404220 , 9973167 , 91100200 , 46002934 , 74244506 , 868088825 , 9297762864 , 5828026641
n×2
42065956
n×3
63098934
n×4
84131912
n×5
105164890
n÷2
10516489
n÷3
7010992.6666667
n÷3
5258244.5
n÷5
4206595.6
n2
442386163548484
n3
9.3046984454197E+21
n4
1.9570551769915E+29
n5
4.1162698482447E+36
2 √n
4586.1724782219
3 √n
276.03676083904
4 √n
67.721285267055
5 √n
29.14608006023
1 , 2 , 17 , 34 , 127 , 254 , 2159 , 4318 , 4871 , 9742 , 82807 , 165614 , 618617 , 1237234 , 10516489 , 21032978
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
-21032977
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 21032978 can be divided by 16 positive divisors.
The sum of these divisors (counting 21032978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001111000000010010
3
Ternary
1110120120211012
4
Quaternary
1100033000102
5
Quinary
20341023403
6
Senary
2030450522
8
Octal
120170022
10
Decimal
21032978
12
Duodecimal
7063a42
16
Hexadecimal
140f012
20
Vigesimal
6b928i
36
Base36
cit5e
md5
9c678c2e8173c3aeda7d8a9924d6c750
sha1
4360bdcf026e97268751a4915a087eae13a157cb
sha256
d0d36d8cdd765e0d3bf97cfe568f31aa16285ffcd873d729cb305b9e9f37d82f
sha512
3762bc37f8a9ef5c7fa9c41455a3c6f131c79198302a5f887c98320418b82df41442b2f022d967adf88e9d9b48459c4576bb2e9f9151121ddf4589b85e0bb4e0
ripemd-160
83965fbf8d9d3b222d970932116bbdbdf6bafb96
Diameter
42065956
Circumference
132154098.33583
Area
1.3897971214537E+15
Volume
3.8975429706665E+22
Surface area
5.5591884858148E+15
Circumference
132154098.33583
Perimeter
84131912
Area
442386163548484
Diagonal
29745122.744695
Surface area
2654316981290904
Volume
9.3046984454197E+21
Space diagonal
36430186.530478
Perimeter
63098934
Area
1.9155882795786E+14
Altitude
18215093.265239
Surface area
1.9155882795786E+14
Volume
1.096569227942E+21
Height
9915040.9148983