87831221 is an odd 8-digits prime number following 87831220
and preceding 87831222 . In scientific notation, it is written as 8.7831221 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 87831220 positive integers (up to 87831221) that are relatively prime to 87831221.
87831221 has 2 divisors, whose sum is 87831222
The reverse of 87831221 is 12213878
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 32 Digital Root 5
Name
eighty-seven million eight hundred thirty-one thousand two hundred twenty-one
Scientific notation
8.7831221 × 10^7
Engineering notation
8.7831221 × 10^6
Prime Factorization
87831221
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
87831221 Product of the distinct prime numbers
The prime factorization of 87831221 is 87831221.
Since it has a total of 1 prime factors.
3 , 5 , 33 , 2 , 313 , 279 , 8869 , 1268 , 95862 , 65644 , 186098 , 70926 , 8238182 , 775515 , 44473515 , 55538745 , 3512446 , 72161549 , 3854202435 , 1340431406
n×2
175662442
n×3
263493663
n×4
351324884
n×5
439156105
n÷2
43915610.5
n÷3
29277073.666667
n÷3
21957805.25
n÷5
17566244.2
n2
7714323382350841
n3
6.7755844186072E+23
n4
5.9510785247485E+31
n5
5.2269049309554E+39
2 √n9371.8312511483
3 √n444.51147162484
4 √n96.808218923541
5 √n38.790893579782
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
87831222 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
43915611 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9371.8313044997 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999772291 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87831221 can be divided by 2 positive divisors.
The sum of these divisors (counting 87831221) is 87831222, the average is 43915611.
Base
System
Value
2
Binary
101001111000011001010110101
3
Ternary
20010021021210012
4
Quaternary
11033003022311
5
Quinary
134441044341
6
Senary
12414310005
8
Octal
517031265
10
Decimal
87831221
12
Duodecimal
254b8305
16
Hexadecimal
53c32b5
20
Vigesimal
178ii11
36
Base36
1gaj05
md5
e9f21ee75d1062b3d7d567e20efe7154
sha1
b4c8a6fdaac7a48472d86a39ebb93fdcd124031b
sha256
01bbec757e7111478e9b7fc87c5f56f0aab72baf50f7e6274752ba2ea1eaac36
sha512
a1bc13b1950df80f2b3942a22bf04bf6c573784b2e10bb6689cb64564441bec1a26283c6bf7734b5153e089210656d2c4f68b91b1a96d666e93feb56ee0b3a65
ripemd-160
41e625f8bcfda205414d4e222d1baba341a08bf4
Diameter
175662442
Circumference
551859837.29884
Area
2.4235261665409E+16
Volume
2.8381501644365E+24
Surface area
9.6941046661637E+16
Circumference
551859837.29884
Perimeter
351324884
Area
7714323382350841
Diagonal
124212103.93799
Surface area
46285940294105046
Volume
6.7755844186072E+23
Space diagonal
152128137.26281
Perimeter
263493663
Area
3.3404000110621E+15
Altitude
76064068.631405
Surface area
3.3404000110621E+15
Volume
7.9851028148318E+22
Height
41404034.645996