78897994 is an even 8-digits composite number following 78897993
and preceding 78897995 . In scientific notation, it is written as 7.8897994 × 10^7.
The sum of its digits is 61. It has a total of 5 prime factors and 32 positive divisors.
There are 31420224 positive integers (up to 78897994) that are relatively prime to 78897994.
78897994 has 32 divisors, whose sum is 143095680
The reverse of 78897994 is 49979887
Previous prime number is 1273
Is Prime? no
Number parity even
Number length 8
Sum of Digits 61
Digital Root 7
Name
seventy-eight million eight hundred ninety-seven thousand nine hundred ninety-four
Scientific notation
7.8897994 × 10^7
Engineering notation
7.8897994 × 10^6
Prime Factorization
2 × 7 × 19 × 1273 × 233
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
78897994
Product of the distinct prime numbers
The prime factorization of 78897994 is 2 × 7 × 19 × 1273 × 233.
Since it has a total of 5 prime factors.
4 , 2 , 86 , 4 , 60 , 230 , 9400 , 4123 , 8922 , 14019 , 947140 , 189425 , 6149575 , 9631360 , 44375226 , 83062275 , 485816893 , 385672927 , 5368954742 , 6367064450
n×2
157795988
n×3
236693982
n×4
315591976
n×5
394489970
n÷2
39448997
n÷3
26299331.333333
n÷3
19724498.5
n÷5
15779598.8
n2
6224893457224036
n3
4.911316066387E+23
n4
3.8749298553791E+31
n5
3.0572419248012E+39
2 √n
8882.4542779572
3 √n
428.89928321381
4 √n
94.246773302629
5 √n
37.967604090272
1 , 2 , 7 , 14 , 19 , 38 , 133 , 233 , 266 , 466 , 1273 , 1631 , 2546 , 3262 , 4427 , 8854 , 8911 , 17822 , 24187 , 30989 , 48374 , 61978 , 169309 , 296609 , 338618 , 593218 , 2076263 , 4152526 , 5635571 , 11271142 , 39448997 , 78897994
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
-78897993
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 78897994 can be divided by 32 positive divisors.
The sum of these divisors (counting 78897994) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101100111110001101001010
3
Ternary
12111110102200221
4
Quaternary
10230332031022
5
Quinary
130144213434
6
Senary
11455020254
8
Octal
454761512
10
Decimal
78897994
12
Duodecimal
2250a68a
16
Hexadecimal
4b3e34a
20
Vigesimal
14d24je
36
Base36
1az22y
md5
61c83a0c5f0dccbc70923fa6d340e1dc
sha1
1383a87ed83699d94c8f12df4af6e46abba0c531
sha256
fb4cab0ddf0cfc970ad4f139aff1dfb565f4df75934ba11f93f5f6f59ebc452d
sha512
192625add5cde6e4a879f0068835163eae1585bd65d8a359d9c420334c13bc456afc0241902e5f2bc7d7c4389cf7ee141554d4a5e6593569462533139d96fbd3
ripemd-160
5798c6d3e1d70c623211e3f4975d97092be923fa
Diameter
157795988
Circumference
495730716.66674
Area
1.9556079554594E+16
Volume
2.0572472631492E+24
Surface area
7.8224318218377E+16
Circumference
495730716.66674
Perimeter
315591976
Area
6224893457224036
Diagonal
111578613.15883
Surface area
37349360743344216
Volume
4.911316066387E+23
Space diagonal
136655334.22326
Perimeter
236693982
Area
2.6954579349038E+15
Altitude
68327667.111632
Surface area
2.6954579349038E+15
Volume
5.7880414918212E+22
Height
37192871.052944