87994987 is an odd 8-digits composite number following 87994986
and preceding 87994988 . In scientific notation, it is written as 8.7994987 × 10^7.
The sum of its digits is 61. It has a total of 2 prime factors and 4 positive divisors.
There are 84169096 positive integers (up to 87994987) that are relatively prime to 87994987.
87994987 has 4 divisors, whose sum is 91820880
The reverse of 87994987 is 78949978
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 61
Digital Root 7
Name
eighty-seven million nine hundred ninety-four thousand nine hundred eighty-seven
Scientific notation
8.7994987 × 10^7
Engineering notation
8.7994987 × 10^6
Prime Factorization
23 × 3825869
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87994987
Product of the distinct prime numbers
The prime factorization of 87994987 is 23 × 3825869.
Since it has a total of 2 prime factors.
3 , 10 , 53 , 63 , 96 , 776 , 844 , 6443 , 3726 , 30695 , 711884 , 700970 , 3271445 , 7222097 , 75632017 , 32335816 , 213888503 , 599090731 , 2461159976 , 4593821549
n×2
175989974
n×3
263984961
n×4
351979948
n×5
439974935
n÷2
43997493.5
n÷3
29331662.333333
n÷3
21998746.75
n÷5
17598997.4
n2
7743117737130169
n3
6.8135554461824E+23
n4
5.995587229106E+31
n5
5.2758162028255E+39
2 √n
9380.5643220437
3 √n
444.78757188363
4 √n
96.853313428317
5 √n
38.805348341478
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
-87994986
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 87994987 can be divided by 4 positive divisors.
The sum of these divisors (counting 87994987) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001111101011001001101011
3
Ternary
20010120121102121
4
Quaternary
11033223021223
5
Quinary
140011314422
6
Senary
12422012111
8
Octal
517531153
10
Decimal
87994987
12
Duodecimal
25577037
16
Hexadecimal
53eb26b
20
Vigesimal
179j797
36
Base36
1ge1d7
md5
07449f22c906ef3f490df0658ad545c6
sha1
275be3922e92bd79a92c8281a6044842f3300c73
sha256
2bd2fdc6eaf8a9413462d468b4bcec733fd2c2b5a9cf5ca09249470768eae087
sha512
4f8c597c7c652eb6bad30557c6ee7af14944776c10c495f95a605d1f445bb4ab9caf7fa1f57658f9f748dfc6bb376001a464a16711e3837623b9b7a4b64fc0ee
ripemd-160
493f63da5c00dcaf3596641cc8a5919523a373d0
Diameter
175989974
Circumference
552888809.42386
Area
2.4325721798849E+16
Volume
2.8540554312738E+24
Surface area
9.7302887195396E+16
Circumference
552888809.42386
Perimeter
351979948
Area
7743117737130169
Diagonal
124443704.03624
Surface area
46458706422781014
Volume
6.8135554461824E+23
Space diagonal
152411788.29536
Perimeter
263984961
Area
3.3528683324243E+15
Altitude
76205894.147681
Surface area
3.3528683324243E+15
Volume
8.0298520999768E+22
Height
41481234.678748