21254789 is an odd 8-digits prime number following 21254788
and preceding 21254790 . In scientific notation, it is written as 2.1254789 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21254788 positive integers (up to 21254789) that are relatively prime to 21254789.
21254789 has 2 divisors, whose sum is 21254790
The reverse of 21254789 is 98745212
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 38 Digital Root 2
Name
twenty-one million two hundred fifty-four thousand seven hundred eighty-nine
Scientific notation
2.1254789 × 10^7
Engineering notation
2.1254789 × 10^6
Prime Factorization
21254789
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21254789 Product of the distinct prime numbers
The prime factorization of 21254789 is 21254789.
Since it has a total of 1 prime factors.
10 , 2 , 19 , 75 , 914 , 352 , 6104 , 8773 , 9561 , 83278 , 439219 , 120060 , 1246882 , 4549847 , 39165940 , 30303703 , 117920846 , 562865409 , 4956996698 , 504105526
n×2
42509578
n×3
63764367
n×4
85019156
n×5
106273945
n÷2
10627394.5
n÷3
7084929.6666667
n÷3
5313697.25
n÷5
4250957.8
n2
451766055434521
n3
9.602192185623E+21
n4
2.0409256884287E+29
n5
4.3379444872231E+36
2 √n4610.2916393651
3 √n277.00371866573
4 √n67.899128413884
5 √n29.207296509743
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21254790 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10627395 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4610.2917478181 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999059036 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21254789 can be divided by 2 positive divisors.
The sum of these divisors (counting 21254789) is 21254790, the average is 10627395.
Base
System
Value
2
Binary
1010001000101001010000101
3
Ternary
1110222212002102
4
Quaternary
1101011022011
5
Quinary
20420123124
6
Senary
2035321445
8
Octal
121051205
10
Decimal
21254789
12
Duodecimal
7150285
16
Hexadecimal
1445285
20
Vigesimal
6cggj9
36
Base36
cnkat
md5
194604f3db8ecc102c2adb53d01d5b5e
sha1
469f3d369a7b09166bf00aa7da0a6bb90c03a538
sha256
0ff49311b933c0ccbcfca47a12de53eaf180fef90fbb68bb432748400e9133e5
sha512
4c68be1d6530cfcf8dbf7d486733c17dcc17f3a33eaa56d23511c13dcd374cc1bdade9bd337ecd5a36d12bf19cb6b09a015dc847a11af4eb8b86ea8ce660fe9e
ripemd-160
8f5510652eea49a5d5262747c88b5d3db392809c
Diameter
42509578
Circumference
133547777.952
Area
1.4192649208943E+15
Volume
4.0221568571614E+22
Surface area
5.6770596835773E+15
Circumference
133547777.952
Perimeter
85019156
Area
451766055434521
Diagonal
30058810.869178
Surface area
2710596332607126
Volume
9.602192185623E+21
Space diagonal
36814374.452156
Perimeter
63764367
Area
1.9562044028689E+14
Altitude
18407187.226078
Surface area
1.9562044028689E+14
Volume
1.1316292014518E+21
Height
10019603.623059