87991612 is an even 8-digits composite number following 87991611
and preceding 87991613 . In scientific notation, it is written as 8.7991612 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 43910640 positive integers (up to 87991612) that are relatively prime to 87991612.
87991612 has 12 divisors, whose sum is 154283416
The reverse of 87991612 is 21619978
Previous prime number is 42061
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-seven million nine hundred ninety-one thousand six hundred twelve
Scientific notation
8.7991612 × 10^7
Engineering notation
8.7991612 × 10^6
Prime Factorization
2 × 2 × 42061 × 523
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
43995806
Product of the distinct prime numbers
The prime factorization of 87991612 is 2 × 2 × 42061 × 523.
Since it has a total of 4 prime factors.
3 , 10 , 81 , 52 , 273 , 467 , 1849 , 979 , 26947 , 22492 , 389264 , 496228 , 2236990 , 7210691 , 66631927 , 53083150 , 225713752 , 323787687 , 3402597923 , 7668392474
n×2
175983224
n×3
263974836
n×4
351966448
n×5
439958060
n÷2
43995806
n÷3
29330537.333333
n÷3
21997903
n÷5
17598322.4
n2
7742523782358544
n3
6.8127714855807E+23
n4
5.9946674520388E+31
n5
5.2748045250882E+39
2 √n
9380.3844270904
3 √n
444.78188528224
4 √n
96.852384725883
5 √n
38.805050665293
1 , 2 , 4 , 523 , 1046 , 2092 , 42061 , 84122 , 168244 , 21997903 , 43995806 , 87991612
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87991611
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87991612 can be divided by 12 positive divisors.
The sum of these divisors (counting 87991612) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101001111101010010100111100
3
Ternary
20010120102210121
4
Quaternary
11033222110330
5
Quinary
140011212422
6
Senary
12421544324
8
Octal
517522474
10
Decimal
87991612
12
Duodecimal
255750a4
16
Hexadecimal
53ea53c
20
Vigesimal
179ij0c
36
Base36
1gdyrg
md5
5fb72df26adec833ac23ec6f742466a8
sha1
ffe6b41a16cb4b0c048ef102c1b191891844e224
sha256
473fec676529cbf6ad590ddda2f49cf3fa318fa39de8814b5b117456138ed920
sha512
9bc4b98401b06db119ffe4cc3414d54492879a00f3cd5785142bfa318776b0bfa60179470c8a5c5e8b44c2dc351fc9c6fa8b3568fd702fa74635963a82836fa5
ripemd-160
98ace7327ff66c89a5cf3c47b5b9596bb11e7232
Diameter
175983224
Circumference
552867603.67345
Area
2.4323855834902E+16
Volume
2.8537270466248E+24
Surface area
9.7295423339607E+16
Circumference
552867603.67345
Perimeter
351966448
Area
7742523782358544
Diagonal
124438931.06547
Surface area
46455142694151264
Volume
6.8127714855807E+23
Space diagonal
152405942.62389
Perimeter
263974836
Area
3.3526111424638E+15
Altitude
76202971.311944
Surface area
3.3526111424638E+15
Volume
8.0289281935474E+22
Height
41479643.68849