12921215 is an odd 8-digits composite number following 12921214
and preceding 12921216 . In scientific notation, it is written as 1.2921215 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 10293120 positive integers (up to 12921215) that are relatively prime to 12921215.
12921215 has 8 divisors, whose sum is 15571248
The reverse of 12921215 is 51212921
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twelve million nine hundred twenty-one thousand two hundred fifteen
Scientific notation
1.2921215 × 10^7
Engineering notation
1.2921215 × 10^6
Prime Factorization
5 × 241 × 10723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12921215
Product of the distinct prime numbers
The prime factorization of 12921215 is 5 × 241 × 10723.
Since it has a total of 3 prime factors.
2 , 5 , 10 , 79 , 339 , 863 , 1875 , 8453 , 69844 , 51367 , 567952 , 682104 , 6495013 , 3485280 , 25103148 , 52515238 , 168161602 , 673209673 , 9800200233 , 7151403106
n×2
25842430
n×3
38763645
n×4
51684860
n×5
64606075
n÷2
6460607.5
n÷3
4307071.6666667
n÷3
3230303.75
n÷5
2584243
n2
166957797076225
n3
2.1572975919483E+21
n4
2.7874906004546E+28
n5
3.6017765358953E+35
2 √n
3594.6091581701
3 √n
234.65750621561
4 √n
59.95505948767
5 √n
26.439952499142
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
-12921214
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 12921215 can be divided by 8 positive divisors.
The sum of these divisors (counting 12921215) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010010100101111111
3
Ternary
220022110120112
4
Quaternary
301102211333
5
Quinary
11301434330
6
Senary
1140540235
8
Octal
61224577
10
Decimal
12921215
12
Duodecimal
43b167b
16
Hexadecimal
c5297f
20
Vigesimal
40f30f
36
Base36
7oy2n
md5
187871b0a1cca4e7256c6936d8a1736d
sha1
db33e8a516751d514f9bd7006b581a2b9b7eb72d
sha256
1e99f545be8e4f7eb43759d59fe2e94b3f2cdd340e10ff342f120268778720ae
sha512
255bfdbe873571eb2ddc5f5f23b3508d653b93786ad861c76643633d3a7b265af927d96029dfa1c18fa1ce1b6dab1e281d0082da3f880a19017860c7715fc2e2
ripemd-160
8e174e0e1420b2a442540ac2e92d60df945d0ff7
Diameter
25842430
Circumference
81186388.238908
Area
5.245133887542E+14
Volume
9.0364670219622E+21
Surface area
2.0980535550168E+15
Circumference
81186388.238908
Perimeter
51684860
Area
166957797076225
Diagonal
18273357.495339
Surface area
1001746782457350
Volume
2.1572975919483E+21
Space diagonal
22380200.875521
Perimeter
38763645
Area
72294846813949
Altitude
11190100.437761
Surface area
72294846813949
Volume
2.5423995938401E+20
Height
6091119.1651129