21492012 is an even 8-digits composite number following 21492011
and preceding 21492013 . In scientific notation, it is written as 2.1492012 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 24 positive divisors.
There are 6684672 positive integers (up to 21492012) that are relatively prime to 21492012.
21492012 has 24 divisors, whose sum is 38678640
The reverse of 21492012 is 21029412
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand twelve
Scientific notation
2.1492012 × 10^7
Engineering notation
2.1492012 × 10^6
Prime Factorization
2 × 2 × 51 × 137 × 769
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10746006
Product of the distinct prime numbers
The prime factorization of 21492012 is 2 × 2 × 51 × 137 × 769.
Since it has a total of 5 prime factors.
2 , 3 , 59 , 49 , 820 , 999 , 1846 , 1806 , 74125 , 49707 , 211932 , 320020 , 5716350 , 2123395 , 69807905 , 98405693 , 168963253 , 80427040 , 8929004884 , 5318142595
n×2
42984024
n×3
64476036
n×4
85968048
n×5
107460060
n÷2
10746006
n÷3
7164004
n÷3
5373003
n÷5
4298402.4
n2
461906579808144
n3
9.9273017561156E+21
n4
2.1335768847006E+29
n5
4.5854860008907E+36
2 √n
4635.9477995336
3 √n
278.03044712502
4 √n
68.087794791237
5 √n
29.272203444581
1 , 2 , 4 , 51 , 102 , 137 , 204 , 274 , 548 , 769 , 1538 , 3076 , 6987 , 13974 , 27948 , 39219 , 78438 , 105353 , 156876 , 210706 , 421412 , 5373003 , 10746006 , 21492012
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492012 can be divided by 24 positive divisors.
The sum of these divisors (counting 21492012) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001111111000100101100
3
Ternary
1111102220111110
4
Quaternary
1101333010230
5
Quinary
21000221022
6
Senary
2044352020
8
Octal
121770454
10
Decimal
21492012
12
Duodecimal
7245610
16
Hexadecimal
147f12c
20
Vigesimal
6e6a0c
36
Base36
csncc
md5
1a90b4323df202d70fdf3780ab114f52
sha1
339f2ad256c17b7edc8c3910a3e50ed3c3ba6f0a
sha256
55ba8f66e5f599cef484be3d87aaf75b801a7789eb5632bc9487df3544887e5e
sha512
809866d3f7e114edb3575bf3ba88b40f784949b91765c5bb83a63c1b7d5cf985b22faf955d2db838b6a1e75c7cac88b0d9aff123ad1c0cd00c8d115d242fe5b3
ripemd-160
a67211b4539cd099e644235614b55c878b02f8cc
Diameter
42984024
Circumference
135038294.02013
Area
1.4511223177701E+15
Volume
4.1583384355976E+22
Surface area
5.8044892710802E+15
Circumference
135038294.02013
Perimeter
85968048
Area
461906579808144
Diagonal
30394294.853085
Surface area
2771439478848864
Volume
9.9273017561156E+21
Space diagonal
37225256.74088
Perimeter
64476036
Area
2.0001141614452E+14
Altitude
18612628.37044
Surface area
2.0001141614452E+14
Volume
1.1699437317724E+21
Height
10131431.617695