80821987 is an odd 8-digits prime number following 80821986
and preceding 80821988 . In scientific notation, it is written as 8.0821987 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 80821986 positive integers (up to 80821987) that are relatively prime to 80821987.
80821987 has 2 divisors, whose sum is 80821988
The reverse of 80821987 is 78912808
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty million eight hundred twenty-one thousand nine hundred eighty-seven
Scientific notation
8.0821987 × 10^7
Engineering notation
8.0821987 × 10^6
Prime Factorization
80821987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
80821987
Product of the distinct prime numbers
The prime factorization of 80821987 is 80821987.
Since it has a total of 1 prime factors.
10 , 4 , 5 , 18 , 753 , 235 , 989 , 6997 , 17498 , 41464 , 899051 , 683625 , 881377 , 9717399 , 93570902 , 20228956 , 516084577 , 262325422 , 5407959164 , 5984115197
n×2
161643974
n×3
242465961
n×4
323287948
n×5
404109935
n÷2
40410993.5
n÷3
26940662.333333
n÷3
20205496.75
n÷5
16164397.4
n2
6532193582628169
n3
5.2794486481666E+23
n4
4.2669553000929E+31
n5
3.4486380579369E+39
2 √n
8990.1049493318
3 √n
432.35767667179
4 √n
94.816163966551
5 √n
38.150998125088
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
80821988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40410994
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
8990.1050049485
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999752543
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 80821987 can be divided by 2 positive divisors.
The sum of these divisors (counting 80821987) is 80821988, the average is 40410994.
Base
System
Value
2
Binary
100110100010011111011100011
3
Ternary
12122002011220221
4
Quaternary
10310103323203
5
Quinary
131142300422
6
Senary
12004143511
8
Octal
464237343
10
Decimal
80821987
12
Duodecimal
23097b97
16
Hexadecimal
4d13ee3
20
Vigesimal
1552ej7
36
Base36
1c4an7
md5
94ebd754d34c2838f402e3eb1ce57ea4
sha1
a9d81bc9a1fd618e1b1e0126a604dbc51f65d65c
sha256
48790ffceace0a4d4e810c8099590dd64947fecf7469aa6900965485f00e4411
sha512
f8ca3b0ddccc61541919c139566a78740ffb385f0db4734341440587b7726b7dd33c63f87860115ddb0387135cdfc7ff9a88f490d4b532298864c59eaa7dc13f
ripemd-160
c4a2b9ec2ec2a31ab4601c91568a3a191fbb6771
Diameter
161643974
Circumference
507819521.21546
Area
2.0521491371011E+16
Volume
2.2114502784113E+24
Surface area
8.2085965484044E+16
Circumference
507819521.21546
Perimeter
323287948
Area
6532193582628169
Diagonal
114299550.15334
Surface area
39193161495769014
Volume
5.2794486481666E+23
Space diagonal
139987787.85267
Perimeter
242465961
Area
2.8285227924968E+15
Altitude
69993893.926336
Surface area
2.8285227924968E+15
Volume
6.2218899000746E+22
Height
38099850.051114