157215 is an odd 6-digits composite number following 157214
and preceding 157216 . In scientific notation, it is written as 1.57215 × 10^5.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 81696 positive integers (up to 157215) that are relatively prime to 157215.
157215 has 8 divisors, whose sum is 172032
The reverse of 157215 is 512751
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 21
Digital Root 3
Name
one hundred fifty-seven thousand two hundred fifteen
Scientific notation
1.57215 × 10^5
Engineering notation
1.57215 × 10^3
Prime Factorization
15 × 47 × 223
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
157215
Product of the distinct prime numbers
The prime factorization of 157215 is 15 × 47 × 223.
Since it has a total of 3 prime factors.
5 , 6 , 41 , 5 , 350 , 378 , 2622 , 384 , 79311 , 56718 , 33483 , 193005 , 6621208 , 6355867 , 22691246 , 58193857 , 789066392 , 637662640 , 7168865795 , 6919664858
n×2
314430
n×3
471645
n×4
628860
n×5
786075
n÷2
78607.5
n÷3
52405
n÷3
39303.75
n÷5
31443
n2
24716556225
n3
3885813386913375
n4
6.1090815162359E+20
n5
9.6043925057502E+25
2 √n
396.50346782847
3 √n
53.971521334651
4 √n
19.912394829062
5 √n
10.947092707602
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
-157214
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 157215 can be divided by 8 positive divisors.
The sum of these divisors (counting 157215) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110011000011111
3
Ternary
21222122210
4
Quaternary
212120133
5
Quinary
20012330
6
Senary
3211503
8
Octal
463037
10
Decimal
157215
12
Duodecimal
76b93
16
Hexadecimal
2661f
20
Vigesimal
jd0f
36
Base36
3db3
md5
f381c55ea5a71db498d4751ac9be1055
sha1
f7e7145c10fe8a3ecb3a4aa6a734e5c13d8ef6e0
sha256
26d4f18d786e63f226778bc8d1ceb1505084e9f647733198768686192ea0f6fc
sha512
491d74471e7097b7ff719802ec8aeb9c815cd97c3bfb9532d83eee81bbe4a9bc97f4876a1bff810c0b41a4ac9ed3b27db85eb51a5b10e6823e02511b817823b4
ripemd-160
0c843fab5491a3c97bf5d54311f5f791cddcc4b5
Diameter
314430
Circumference
987810.97806824
Area
77649351458.499
Volume
1.6276857052731E+16
Surface area
310597405834
Circumference
987810.97806824
Perimeter
628860
Area
24716556225
Diagonal
222335.58520849
Surface area
148299337350
Volume
3885813386913375
Space diagonal
272304.36771194
Perimeter
471645
Area
10702582792.458
Altitude
136152.18385597
Surface area
10702582792.458
Volume
4.5794749938532E+14
Height
74111.861736162