805157021 is an odd 9-digits composite number following 805157020
and preceding 805157022 . In scientific notation, it is written as 8.05157021 × 10^8.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 758437680 positive integers (up to 805157021) that are relatively prime to 805157021.
805157021 has 16 divisors, whose sum is 853009920
The reverse of 805157021 is 120751508
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
eight hundred five million one hundred fifty-seven thousand twenty-one
Scientific notation
8.05157021 × 10^8
Engineering notation
8.05157021 × 10^6
Prime Factorization
23 × 859 × 491 × 83
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
805157021
Product of the distinct prime numbers
The prime factorization of 805157021 is 23 × 859 × 491 × 83.
Since it has a total of 4 prime factors.
4 , 5 , 66 , 48 , 702 , 4 , 5773 , 2517 , 61634 , 23754 , 874321 , 186055 , 8408278 , 9248567 , 1009082 , 57440867 , 955373905 , 265229351 , 1826429358 , 8426978377
n×2
1610314042
n×3
2415471063
n×4
3220628084
n×5
4025785105
n÷2
402578510.5
n÷3
268385673.66667
n÷3
201289255.25
n÷5
161031404.2
n2
648277828465594441
n3
5.2196544514771E+26
n4
4.2026414288007E+35
n5
3.3837862531443E+44
2 √n
28375.288914829
3 √n
930.3082267354
4 √n
168.44966285163
5 √n
60.41935947541
1 , 23 , 83 , 491 , 859 , 1909 , 11293 , 19757 , 40753 , 71297 , 421769 , 937319 , 1639831 , 9700687 , 35006827 , 805157021
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-805157020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 805157021 can be divided by 16 positive divisors.
The sum of these divisors (counting 805157021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111111111011011100010011101
3
Ternary
2002010001012210102
4
Quaternary
233333123202131
5
Quinary
3122110011041
6
Senary
211521150445
8
Octal
5777334235
10
Decimal
805157021
12
Duodecimal
1a578b425
16
Hexadecimal
2ffdb89d
20
Vigesimal
cbc4cb1
36
Base36
dbdb4t
md5
7ea68e0c74c9ab4ba9e756f2be70b324
sha1
8e99b3f9fe1c178d005468fb3b1ea46fb2e9a084
sha256
a1e13d3cbce4c6abdcfaa7293c745ac40ccc355dadde961f9d4e4efcf044dae3
sha512
014880009be3f36b2313d983cc69dc186624448ce1c50f66b2fe01b1364fef7c82ae178eadee44420c738522826cf59b7aa699dbb455d0b10b50459110e0d4c1
ripemd-160
c52ba2669b4fd4b37ef2788d8ee0cc64fbcdcf01
Diameter
1610314042
Circumference
5058950764.3197
Area
2.0366248633927E+18
Volume
2.1864037438717E+27
Surface area
8.1464994535706E+18
Circumference
5058950764.3197
Perimeter
3220628084
Area
648277828465594441
Diagonal
1138663978.9381
Surface area
3889666970793566646
Volume
5.2196544514771E+26
Space diagonal
1394572868.4428
Perimeter
2415471063
Area
2.8071253408071E+17
Altitude
697286434.2214
Surface area
2.8071253408071E+17
Volume
6.1514217634833E+25
Height
379554659.64604