28156739 is an odd 8-digits composite number following 28156738
and preceding 28156740 . In scientific notation, it is written as 2.8156739 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 25990824 positive integers (up to 28156739) that are relatively prime to 28156739.
28156739 has 4 divisors, whose sum is 30322656
The reverse of 28156739 is 93765182
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million one hundred fifty-six thousand seven hundred thirty-nine
Scientific notation
2.8156739 × 10^7
Engineering notation
2.8156739 × 10^6
Prime Factorization
13 × 2165903
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28156739
Product of the distinct prime numbers
The prime factorization of 28156739 is 13 × 2165903.
Since it has a total of 2 prime factors.
10 , 7 , 72 , 76 , 938 , 30 , 6213 , 678 , 93958 , 20201 , 216043 , 815462 , 1993469 , 9196924 , 23561873 , 53927505 , 703295572 , 282124678 , 4972461027 , 4145615801
n×2
56313478
n×3
84470217
n×4
112626956
n×5
140783695
n÷2
14078369.5
n÷3
9385579.6666667
n÷3
7039184.75
n÷5
5631347.8
n2
792801951114121
n3
2.2322717616211E+22
n4
6.2853493369036E+29
n5
1.7697494080302E+37
2 √n
5306.2923967682
3 √n
304.22445263107
4 √n
72.84430243175
5 √n
30.897011252274
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28156738
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28156739 can be divided by 4 positive divisors.
The sum of these divisors (counting 28156739) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011010001101000011
3
Ternary
1221222111210012
4
Quaternary
1223122031003
5
Quinary
24202003424
6
Senary
2443255135
8
Octal
153321503
10
Decimal
28156739
12
Duodecimal
951a4ab
16
Hexadecimal
1ada343
20
Vigesimal
8fjbgj
36
Base36
grhvn
md5
f63ab171862f48b4722376e762d5a88f
sha1
7984ba7a563f6ac0326d8ea10625177c53efe5fd
sha256
074af5c1eb3ae5aad6f02b4cc515aaf0fa288a878a7f74909484b396c363a9b8
sha512
8bfa77b334d617a62aff3c31875f36f402e0838ad791c4dd8ef79622fb1515b961618aa6ef81db4e237e054c64373a40ab17e44e79c4b1d8206ff3319cf25427
ripemd-160
be3f8cfc616e8b30aa1e80a5e4c0b4d27d87d632
Diameter
56313478
Circumference
176914008.78289
Area
2.4906607853718E+15
Volume
9.3505180894997E+22
Surface area
9.9626431414871E+15
Circumference
176914008.78289
Perimeter
112626956
Area
792801951114121
Diagonal
39819642.165999
Surface area
4756811706684726
Volume
2.2322717616211E+22
Space diagonal
48768902.523456
Perimeter
84470217
Area
3.4329331491735E+14
Altitude
24384451.261728
Surface area
3.4329331491735E+14
Volume
2.6307575001559E+21
Height
13273214.055333