87991017 is an odd 8-digits composite number following 87991016
and preceding 87991018 . In scientific notation, it is written as 8.7991017 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 56637840 positive integers (up to 87991017) that are relatively prime to 87991017.
87991017 has 8 divisors, whose sum is 121367040
The reverse of 87991017 is 71019978
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million nine hundred ninety-one thousand seventeen
Scientific notation
8.7991017 × 10^7
Engineering notation
8.7991017 × 10^6
Prime Factorization
3 × 29 × 1011391
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
87991017
Product of the distinct prime numbers
The prime factorization of 87991017 is 3 × 29 × 1011391.
Since it has a total of 3 prime factors.
10 , 10 , 60 , 55 , 840 , 4 , 3502 , 1443 , 97239 , 28127 , 416610 , 495627 , 8501911 , 1114664 , 4385575 , 91836697 , 226750033 , 176490342 , 8818426 , 2899506888
n×2
175982034
n×3
263973051
n×4
351964068
n×5
439955085
n÷2
43995508.5
n÷3
29330339
n÷3
21997754.25
n÷5
17598203.4
n2
7742419072694289
n3
6.8126332824657E+23
n4
5.994505309722E+31
n5
5.2746261861434E+39
2 √n
9380.3527119187
3 √n
444.7808827404
4 √n
96.852220996313
5 √n
38.804998185137
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87991016
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87991017 can be divided by 8 positive divisors.
The sum of these divisors (counting 87991017) is 1, the average is 0.125.
Base
System
Value
2
Binary
101001111101010001011101001
3
Ternary
20010120101222120
4
Quaternary
11033222023221
5
Quinary
140011203032
6
Senary
12421541453
8
Octal
517521351
10
Decimal
87991017
12
Duodecimal
25574889
16
Hexadecimal
53ea2e9
20
Vigesimal
179ihah
36
Base36
1gdyax
md5
2e17a13429eb3ba630e9e0ca4ec487a0
sha1
b7c9810472a4440e81fb5e91b73def2373833b3f
sha256
0ad7ad17f86f7ca49cc4392f0f6b89fe1c3ad6193ebccc5a28bb182309d8178a
sha512
f3fe30c1c2a3caced5b4a8f8356a7e3157c5ceb9f414b70c0c73c9179bbd15063fda498199e22760840450bfa7b2efca4dbfb0cec2a29120ced402d0c73d386e
ripemd-160
cd546baafd81d92fe127dccae987fd6eeac5ddf3
Diameter
175982034
Circumference
552863865.17819
Area
2.432352687979E+16
Volume
2.8536691562394E+24
Surface area
9.729410751916E+16
Circumference
552863865.17819
Perimeter
351964068
Area
7742419072694289
Diagonal
124438089.6084
Surface area
46454514436165734
Volume
6.8126332824657E+23
Space diagonal
152404912.05366
Perimeter
263973051
Area
3.3525658018492E+15
Altitude
76202456.026828
Surface area
3.3525658018492E+15
Volume
8.0287653196144E+22
Height
41479363.202801