21152961 is an odd 8-digits composite number following 21152960
and preceding 21152962 . In scientific notation, it is written as 2.1152961 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 13562640 positive integers (up to 21152961) that are relatively prime to 21152961.
21152961 has 32 divisors, whose sum is 32563200
The reverse of 21152961 is 16925112
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred fifty-two thousand nine hundred sixty-one
Scientific notation
2.1152961 × 10^7
Engineering notation
2.1152961 × 10^6
Prime Factorization
3 × 9 × 47 × 79 × 211
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21152961
Product of the distinct prime numbers
The prime factorization of 21152961 is 3 × 9 × 47 × 79 × 211.
Since it has a total of 5 prime factors.
2 , 9 , 96 , 70 , 816 , 483 , 493 , 5218 , 116 , 75933 , 481160 , 501088 , 9182371 , 3836141 , 57735829 , 85019572 , 868256983 , 510701520 , 6384685761 , 2843473143
n×2
42305922
n×3
63458883
n×4
84611844
n×5
105764805
n÷2
10576480.5
n÷3
7050987
n÷3
5288240.25
n÷5
4230592.2
n2
447447759067521
n3
9.4648449970927E+21
n4
2.0020949709455E+29
n5
4.2350236838706E+36
2 √n
4599.2348276643
3 √n
276.5606514671
4 √n
67.817658671354
5 √n
29.179257309495
1 , 3 , 9 , 27 , 47 , 79 , 141 , 211 , 237 , 423 , 633 , 711 , 1269 , 1899 , 2133 , 3713 , 5697 , 9917 , 11139 , 16669 , 29751 , 33417 , 50007 , 89253 , 100251 , 150021 , 267759 , 450063 , 783443 , 2350329 , 7050987 , 21152961
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21152960
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21152961 can be divided by 32 positive divisors.
The sum of these divisors (counting 21152961) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000101100010011000001
3
Ternary
1110210200102000
4
Quaternary
1100230103001
5
Quinary
20403343321
6
Senary
2033214213
8
Octal
120542301
10
Decimal
21152961
12
Duodecimal
7101369
16
Hexadecimal
142c4c1
20
Vigesimal
6c4281
36
Base36
cldq9
md5
e7d1c1be62cb8b712df7043ae747c408
sha1
f89ce5fc1a3c49e36ab09a2fdfa8a9183b252a45
sha256
7c31ba6f986895f3f21b5900eaafb9804e9e7fe9e12eb8061932c03218df4d0b
sha512
e38613a550b28584dbab455a4c2cf37dd03bda472f527da8fee971ec8349324a6f7dd4d9f26bfa44067504f800b2d1839011a2e078d0dbdb7c6304604c1cac06
ripemd-160
b93d990dee7cf178aa93969a2a2882aa8beb80c1
Diameter
42305922
Circumference
132907973.75854
Area
1.4056985927517E+15
Volume
3.9646250013643E+22
Surface area
5.622794371007E+15
Circumference
132907973.75854
Perimeter
84611844
Area
447447759067521
Diagonal
29914804.330549
Surface area
2684686554405126
Volume
9.4648449970927E+21
Space diagonal
36638003.182523
Perimeter
63458883
Area
1.9375056310945E+14
Altitude
18319001.591261
Surface area
1.9375056310945E+14
Volume
1.115442680054E+21
Height
9971601.4435164