21354961 is an odd 8-digits composite number following 21354960
and preceding 21354962 . In scientific notation, it is written as 2.1354961 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 20783952 positive integers (up to 21354961) that are relatively prime to 21354961.
21354961 has 8 divisors, whose sum is 21929600
The reverse of 21354961 is 16945312
Previous prime number is 1423
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million three hundred fifty-four thousand nine hundred sixty-one
Scientific notation
2.1354961 × 10^7
Engineering notation
2.1354961 × 10^6
Prime Factorization
43 × 1423 × 349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21354961
Product of the distinct prime numbers
The prime factorization of 21354961 is 43 × 1423 × 349.
Since it has a total of 3 prime factors.
7 , 10 , 18 , 81 , 879 , 994 , 6099 , 7904 , 17325 , 19487 , 233263 , 286582 , 8828703 , 6861436 , 21979374 , 58803356 , 387517492 , 372510924 , 9310112785 , 5984196639
n×2
42709922
n×3
64064883
n×4
85419844
n×5
106774805
n÷2
10677480.5
n÷3
7118320.3333333
n÷3
5338740.25
n÷5
4270992.2
n2
456034359311521
n3
9.7385959577575E+21
n4
2.0796733687267E+29
n5
4.4411343681897E+36
2 √n
4621.1428240209
3 √n
277.43820175158
4 √n
67.978988106774
5 √n
29.234775054191
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
-21354960
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 21354961 can be divided by 8 positive divisors.
The sum of these divisors (counting 21354961) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011101100111010001
3
Ternary
1111011221111111
4
Quaternary
1101131213101
5
Quinary
20431324321
6
Senary
2041413321
8
Octal
121354721
10
Decimal
21354961
12
Duodecimal
719a241
16
Hexadecimal
145d9d1
20
Vigesimal
6d9781
36
Base36
cppld
md5
a636d55615d878c91ea7a6e47a14068f
sha1
3f14cb43b1d4d422fce2515da40b578b19782e57
sha256
6ab40eab16547252b5a7410964971c9c43f28d5a0cf40a65cd3aa8f0d8cd494f
sha512
e3963c22747e32c877b79a11898c9620d0b26c2682cc02f03e6e5c2e9b2e6659889b8fe1d43b41e78c908b46a09c51df2e522d09cf3da73c3f142fe3dd42a717
ripemd-160
003caa0b1c96a1288e6c98b01bf45b1aae8deb1e
Diameter
42709922
Circumference
134177177.19059
Area
1.4326741929976E+15
Volume
4.0792935356227E+22
Surface area
5.7306967719904E+15
Circumference
134177177.19059
Perimeter
85419844
Area
456034359311521
Diagonal
30200475.470149
Surface area
2736206155869126
Volume
9.7385959577575E+21
Space diagonal
36987877.445652
Perimeter
64064883
Area
1.9746867008117E+14
Altitude
18493938.722826
Surface area
1.9746867008117E+14
Volume
1.147704540161E+21
Height
10066825.156716