87130891 is an odd 8-digits prime number following 87130890
and preceding 87130892 . In scientific notation, it is written as 8.7130891 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 87130890 positive integers (up to 87130891) that are relatively prime to 87130891.
87130891 has 2 divisors, whose sum is 87130892
The reverse of 87130891 is 19803178
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-seven million one hundred thirty thousand eight hundred ninety-one
Scientific notation
8.7130891 × 10^7
Engineering notation
8.7130891 × 10^6
Prime Factorization
87130891
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
87130891
Product of the distinct prime numbers
The prime factorization of 87130891 is 87130891.
Since it has a total of 1 prime factors.
6 , 2 , 70 , 100 , 495 , 668 , 2246 , 1690 , 54389 , 59560 , 460960 , 690278 , 1373695 , 3403076 , 49865861 , 56788204 , 303751438 , 697492047 , 6055008926 , 2261313520
n×2
174261782
n×3
261392673
n×4
348523564
n×5
435654455
n÷2
43565445.5
n÷3
29043630.333333
n÷3
21782722.75
n÷5
17426178.2
n2
7591792166453881
n3
6.6147961574995E+23
n4
5.7635308298631E+31
n5
5.0218157651194E+39
2 √n
9334.3929100933
3 √n
443.32686701079
4 √n
96.61466198302
5 √n
38.728834807049
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
87130892
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
43565446
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9334.3929636586
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999977046
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87130891 can be divided by 2 positive divisors.
The sum of these divisors (counting 87130891) is 87130892, the average is 43565446.
Base
System
Value
2
Binary
101001100011000001100001011
3
Ternary
20001221201010001
4
Quaternary
11030120030023
5
Quinary
134301142031
6
Senary
12351303431
8
Octal
514301413
10
Decimal
87130891
12
Duodecimal
2521ab77
16
Hexadecimal
531830b
20
Vigesimal
174b74b
36
Base36
1fvimj
md5
259f06532e0323e82998ac92646463c9
sha1
913469be0de53fe407fe18e2079eb143bcb1c52c
sha256
d44b86ac0ecd1d3c821f55edeacb3cac4b18b444cd64308a189bd34c0d6eed1c
sha512
ca21ac873807f7a4780ca77f5bf66bf2a7cb5a657d51bb214f648654963956d8e401a8abbae4184cc5f2130518bab3909b435e6cb53cabade34ac6b3d52c79bf
ripemd-160
af3327198131c2fb9013ac23fe3e602c293cc22c
Diameter
174261782
Circumference
547459534.13267
Area
2.3850318497712E+16
Volume
2.7707993351192E+24
Surface area
9.5401273990848E+16
Circumference
547459534.13267
Perimeter
348523564
Area
7591792166453881
Diagonal
123221687.75385
Surface area
45550752998723286
Volume
6.6147961574995E+23
Space diagonal
150915130.12075
Perimeter
261392673
Area
3.2873424382004E+15
Altitude
75457565.060373
Surface area
3.2873424382004E+15
Volume
7.795612031891E+22
Height
41073895.917951