21551378 is an even 8-digits composite number following 21551377
and preceding 21551379 . In scientific notation, it is written as 2.1551378 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10747600 positive integers (up to 21551378) that are relatively prime to 21551378.
21551378 has 8 divisors, whose sum is 32411340
The reverse of 21551378 is 87315512
Previous prime number is 389
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand three hundred seventy-eight
Scientific notation
2.1551378 × 10^7
Engineering notation
2.1551378 × 10^6
Prime Factorization
2 × 389 × 27701
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551378
Product of the distinct prime numbers
The prime factorization of 21551378 is 2 × 389 × 27701.
Since it has a total of 3 prime factors.
10 , 4 , 61 , 67 , 72 , 97 , 5121 , 4219 , 46344 , 47878 , 293090 , 207366 , 9310184 , 6139235 , 34063514 , 50124639 , 327593211 , 96298476 , 6221370688 , 8823100897
n×2
43102756
n×3
64654134
n×4
86205512
n×5
107756890
n÷2
10775689
n÷3
7183792.6666667
n÷3
5387844.5
n÷5
4310275.6
n2
464461893698884
n3
1.00097938377E+22
n4
2.1572485069835E+29
n5
4.6491678013938E+36
2 √n
4642.3461740805
3 √n
278.28620697651
4 √n
68.134764798013
5 √n
29.288356950821
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
-21551377
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 21551378 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551378) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100100010010
3
Ternary
1111112220221012
4
Quaternary
1102031210102
5
Quinary
21004121003
6
Senary
2045530522
8
Octal
122154422
10
Decimal
21551378
12
Duodecimal
7273a42
16
Hexadecimal
148d912
20
Vigesimal
6edi8i
36
Base36
ctx5e
md5
988368a9be97a16bb0372565d67d3dc2
sha1
0cc6dab437ffde549ea101545f3d9274f66f44b9
sha256
66308236d4614eedcce5013fef016ed63c8608e5116e0c73101fe91f2963be7c
sha512
d90a0617669b0fef280dfd0d3708ba6bda17fce9b8aa8b83dc1bd610a050e67d7a433d13380c979cc8b96951bd7224b62457e1492c9617339aa1f408f1191689
ripemd-160
d400eeee06ae8cfab8d1435c289a4f7e6ceb9b4f
Diameter
43102756
Circumference
135411301.59907
Area
1.4591500731168E+15
Volume
4.1928926379291E+22
Surface area
5.8366002924673E+15
Circumference
135411301.59907
Perimeter
86205512
Area
464461893698884
Diagonal
30478251.055429
Surface area
2786771362193304
Volume
1.00097938377E+22
Space diagonal
37328081.669122
Perimeter
64654134
Area
2.0111789951653E+14
Altitude
18664040.834561
Surface area
2.0111789951653E+14
Volume
1.1796655168196E+21
Height
10159417.018476