215688057 is an odd 9-digits composite number following 215688056
and preceding 215688058 . In scientific notation, it is written as 2.15688057 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 125744832 positive integers (up to 215688057) that are relatively prime to 215688057.
215688057 has 8 divisors, whose sum is 288749376
The reverse of 215688057 is 750886512
Previous prime number is 247
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
two hundred fifteen million six hundred eighty-eight thousand fifty-seven
Scientific notation
2.15688057 × 10^8
Engineering notation
2.15688057 × 10^6
Prime Factorization
3 × 247 × 291077
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
215688057
Product of the distinct prime numbers
The prime factorization of 215688057 is 3 × 247 × 291077.
Since it has a total of 3 prime factors.
3 , 1 , 78 , 3 , 718 , 120 , 7273 , 8702 , 25049 , 30161 , 893006 , 316314 , 9605722 , 2600351 , 22385153 , 69828429 , 374157347 , 105348495 , 941523615 , 4717015930
n×2
431376114
n×3
647064171
n×4
862752228
n×5
1078440285
n÷2
107844028.5
n÷3
71896019
n÷3
53922014.25
n÷5
43137611.4
n2
46521337932435249
n3
1.0034096987687E+25
n4
2.1642348830238E+33
n5
4.6679961681103E+41
2 √n
14686.32210596
3 √n
599.71102473339
4 √n
121.18713671822
5 √n
46.426422530824
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
-215688056
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 215688057 can be divided by 8 positive divisors.
The sum of these divisors (counting 215688057) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100110110110010001101111001
3
Ternary
120000212002101120
4
Quaternary
30312302031321
5
Quinary
420204004212
6
Senary
33222535453
8
Octal
1466621571
10
Decimal
215688057
12
Duodecimal
60297589
16
Hexadecimal
cdb2379
20
Vigesimal
378102h
36
Base36
3kexyx
md5
04fc9d06518933e70447b88a4923e6d0
sha1
8ddeb3ff9e6d66b8e60a1c32369818e5829c90e7
sha256
9077b721690a9b2f7966bc8595f7aadefddcc124566e751d31dcff1fde517a5b
sha512
65aca2521c04197b0c47519dfc80728f9a5b391f084777d1fffa7ab4b4a96a2c2d5903eac4297b3fc7d0ccaedb9910f6ebb1abcf973f1def9b073a558760ea2f
ripemd-160
cd0e3d4c34fd4553a36fa528b807f516c3295a0e
Diameter
431376114
Circumference
1355208030.6765
Area
1.4615109348371E+17
Volume
4.2030727175901E+25
Surface area
5.8460437393483E+17
Circumference
1355208030.6765
Perimeter
862752228
Area
46521337932435249
Diagonal
305028975.4513
Surface area
279128027594611494
Volume
1.0034096987687E+25
Space diagonal
373582673.30981
Perimeter
647064171
Area
2.0144330233765E+16
Altitude
186791336.65491
Surface area
2.0144330233765E+16
Volume
1.1825296705129E+24
Height
101676325.15043