87978345 is an odd 8-digits composite number following 87978344
and preceding 87978346 . In scientific notation, it is written as 8.7978345 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 37124352 positive integers (up to 87978345) that are relatively prime to 87978345.
87978345 has 16 divisors, whose sum is 119110992
The reverse of 87978345 is 54387978
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighty-seven million nine hundred seventy-eight thousand three hundred forty-five
Scientific notation
8.7978345 × 10^7
Engineering notation
8.7978345 × 10^6
Prime Factorization
5 × 21 × 13 × 64453
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
87978345
Product of the distinct prime numbers
The prime factorization of 87978345 is 5 × 21 × 13 × 64453.
Since it has a total of 4 prime factors.
2 , 5 , 66 , 2 , 858 , 459 , 8000 , 5058 , 27112 , 46898 , 637104 , 369700 , 4850794 , 9903254 , 72763266 , 79138075 , 833937996 , 337787697 , 3940343548 , 3108446636
n×2
175956690
n×3
263935035
n×4
351913380
n×5
439891725
n÷2
43989172.5
n÷3
29326115
n÷3
21994586.25
n÷5
17595669
n2
7740189188939025
n3
6.8096903482975E+23
n4
5.9910528680569E+31
n5
5.2708291613915E+39
2 √n
9379.6772332528
3 √n
444.75953005339
4 √n
96.848733772067
5 √n
38.803880422704
1 , 5 , 13 , 21 , 65 , 105 , 273 , 1365 , 64453 , 322265 , 837889 , 1353513 , 4189445 , 6767565 , 17595669 , 87978345
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87978344
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87978345 can be divided by 16 positive divisors.
The sum of these divisors (counting 87978345) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001111100111000101101001
3
Ternary
20010112202121020
4
Quaternary
11033213011221
5
Quinary
140010301340
6
Senary
12421403053
8
Octal
517470551
10
Decimal
87978345
12
Duodecimal
25569489
16
Hexadecimal
53e7169
20
Vigesimal
179h5h5
36
Base36
1gdoix
md5
a0a5d7a7b23d6100f74a7329c1a6d2be
sha1
587c1f19a8b9d108fdf0bbd0c236fb157b838487
sha256
eb0e4a2f6b8c0b6902ea17f06203a66fa2bf7858c06e2581e97b3b67a8ae73c6
sha512
c14b156549768c097ea845f8850adf31733640533bb2a2a248f5d0dbc0b19010a8c9698721c35fd554b624610e4303945e5f2f2626cb06eff6100abdf6bc74b3
ripemd-160
bf025d9e913a7dce9ec0708d86be3c7428c366c8
Diameter
175956690
Circumference
552784244.65398
Area
2.4316521493366E+16
Volume
2.8524364228577E+24
Surface area
9.7266085973464E+16
Circumference
552784244.65398
Perimeter
351913380
Area
7740189188939025
Diagonal
124420168.69414
Surface area
46441135133634150
Volume
6.8096903482975E+23
Space diagonal
152382963.50582
Perimeter
263935035
Area
3.3516002338594E+15
Altitude
76191481.752912
Surface area
3.3516002338594E+15
Volume
8.0252970384362E+22
Height
41473389.564713