87087978 is an even 8-digits composite number following 87087977
and preceding 87087979 . In scientific notation, it is written as 8.7087978 × 10^7.
The sum of its digits is 54. It has a total of 5 prime factors and 32 positive divisors.
There are 28399680 positive integers (up to 87087978) that are relatively prime to 87087978.
87087978 has 32 divisors, whose sum is 148331520
The reverse of 87087978 is 87978078
Previous prime number is 191
Is Prime? no
Number parity even
Number length 8
Sum of Digits 54
Digital Root 9
Name
eighty-seven million eighty-seven thousand nine hundred seventy-eight
Scientific notation
8.7087978 × 10^7
Engineering notation
8.7087978 × 10^6
Prime Factorization
2 × 9 × 73 × 191 × 347
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
87087978
Product of the distinct prime numbers
The prime factorization of 87087978 is 2 × 9 × 73 × 191 × 347.
Since it has a total of 5 prime factors.
7 , 10 , 7 , 49 , 589 , 423 , 3616 , 5972 , 25523 , 98201 , 318808 , 532788 , 6267199 , 292930 , 93698754 , 3601222 , 224833832 , 951041185 , 1763752981 , 7744291470
n×2
174175956
n×3
261263934
n×4
348351912
n×5
435439890
n÷2
43543989
n÷3
29029326
n÷3
21771994.5
n÷5
17417595.6
n2
7584315912128484
n3
6.605027373005E+23
n4
5.7521847854965E+31
n5
5.0094614205126E+39
2 √n
9332.0939772379
3 √n
443.25407380759
4 √n
96.602763817801
5 √n
38.725019172933
1 , 2 , 9 , 18 , 73 , 146 , 191 , 347 , 382 , 657 , 694 , 1314 , 1719 , 3123 , 3438 , 6246 , 13943 , 25331 , 27886 , 50662 , 66277 , 125487 , 132554 , 227979 , 250974 , 455958 , 596493 , 1192986 , 4838221 , 9676442 , 43543989 , 87087978
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
-87087977
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 87087978 can be divided by 32 positive divisors.
The sum of these divisors (counting 87087978) is 1, the average is 0.03125.
Base
System
Value
2
Binary
101001100001101101101101010
3
Ternary
20001212112020200
4
Quaternary
11030031231222
5
Quinary
134243303403
6
Senary
12350333030
8
Octal
514155552
10
Decimal
87087978
12
Duodecimal
251ba176
16
Hexadecimal
530db6a
20
Vigesimal
1745jii
36
Base36
1fulii
md5
f58f080af0029096adca01064c4818d1
sha1
a90c6be16318a4e24366bcdc64e8f1e2572548eb
sha256
0dc371d492f39f27f226a7d63cf7c65b5df5869a7e0052769eda7b4ca4219cb5
sha512
34f0d97046f7b6d2b81b354da5fcd81f07cf91a183462018754167ca8d56ae0145334becb0440a68691aab60a9837540a2cecaf694c4d95e3186b3d620a217e0
ripemd-160
b90ccbb3d56218418e05f04fbbb97624164b6935
Diameter
174175956
Circumference
547189903.80158
Area
2.3826831152047E+16
Volume
2.7667073962389E+24
Surface area
9.5307324608188E+16
Circumference
547189903.80158
Perimeter
348351912
Area
7584315912128484
Diagonal
123160999.60725
Surface area
45505895472770904
Volume
6.605027373005E+23
Space diagonal
150840802.62444
Perimeter
261263934
Area
3.2841051251149E+15
Altitude
75420401.31222
Surface area
3.2841051251149E+15
Volume
7.7840994089576E+22
Height
41053666.53575