78281091 is an odd 8-digits composite number following 78281090
and preceding 78281092 . In scientific notation, it is written as 7.8281091 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 44651520 positive integers (up to 78281091) that are relatively prime to 78281091.
78281091 has 24 divisors, whose sum is 129458784
The reverse of 78281091 is 19018287
Previous prime number is 1217
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-eight million two hundred eighty-one thousand ninety-one
Scientific notation
7.8281091 × 10^7
Engineering notation
7.8281091 × 10^6
Prime Factorization
3 × 3 × 7 × 1217 × 1021
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
26093697
Product of the distinct prime numbers
The prime factorization of 78281091 is 3 × 3 × 7 × 1217 × 1021.
Since it has a total of 5 prime factors.
1 , 1 , 16 , 9 , 369 , 427 , 4555 , 3088 , 14164 , 78972 , 333589 , 319324 , 1081121 , 5360288 , 84174984 , 41180392 , 634990582 , 969172413 , 7262776832 , 5046978945
n×2
156562182
n×3
234843273
n×4
313124364
n×5
391405455
n÷2
39140545.5
n÷3
26093697
n÷3
19570272.75
n÷5
15656218.2
n2
6127929208150281
n3
4.7970098398477E+23
n4
3.7551516380101E+31
n5
2.9395736709387E+39
2 √n
8847.6601991713
3 √n
427.77850324771
4 √n
94.062001887964
5 √n
37.908043817913
1 , 3 , 7 , 9 , 21 , 63 , 1021 , 1217 , 3063 , 3651 , 7147 , 8519 , 9189 , 10953 , 21441 , 25557 , 64323 , 76671 , 1242557 , 3727671 , 8697899 , 11183013 , 26093697 , 78281091
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78281090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78281091 can be divided by 24 positive divisors.
The sum of these divisors (counting 78281091) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100101010100111100110000011
3
Ternary
12110022002110200
4
Quaternary
10222213212003
5
Quinary
130014443331
6
Senary
11433500243
8
Octal
452474603
10
Decimal
78281091
12
Duodecimal
22271683
16
Hexadecimal
4aa7983
20
Vigesimal
14952eb
36
Base36
1alu2r
md5
b6470f14ff09471c42f0d6f65641a88e
sha1
c4ab878cdbdffc0b73641e24ba68d66be0078f24
sha256
8be186618d11212eaad0a5f94554b1a1d0cdb52fa73994742f5b7f9d61c68757
sha512
1085e8a8cea2b62fbdf04e1075d158fe4a671d6c91b5b9b76cee8d31f622ab6d486cdf3392bfe55afd8761542abf68661f997dc485cf055fe75b25546f6f66db
ripemd-160
c4c2f617f82ee3e07d218024461684a7835fadd7
Diameter
156562182
Circumference
491854600.80119
Area
1.9251457382043E+16
Volume
2.0093667829418E+24
Surface area
7.7005829528173E+16
Circumference
491854600.80119
Perimeter
313124364
Area
6127929208150281
Diagonal
110706180.56956
Surface area
36767575248901686
Volume
4.7970098398477E+23
Space diagonal
135586826.88392
Perimeter
234843273
Area
2.6534711834254E+15
Altitude
67793413.441961
Surface area
2.6534711834254E+15
Volume
5.6533303119582E+22
Height
36902060.189854