80811921 is an odd 8-digits composite number following 80811920
and preceding 80811922 . In scientific notation, it is written as 8.0811921 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 49850640 positive integers (up to 80811921) that are relatively prime to 80811921.
80811921 has 16 divisors, whose sum is 116061440
The reverse of 80811921 is 12911808
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty million eight hundred eleven thousand nine hundred twenty-one
Scientific notation
8.0811921 × 10^7
Engineering notation
8.0811921 × 10^6
Prime Factorization
3 × 19 × 43 × 32971
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
80811921
Product of the distinct prime numbers
The prime factorization of 80811921 is 3 × 19 × 43 × 32971.
Since it has a total of 4 prime factors.
10 , 6 , 90 , 6 , 681 , 15 , 9988 , 4685 , 79947 , 70158 , 106668 , 317532 , 8015281 , 3947527 , 12085713 , 6581861 , 527959481 , 585599588 , 1713310722 , 8562067071
n×2
161623842
n×3
242435763
n×4
323247684
n×5
404059605
n÷2
40405960.5
n÷3
26937307
n÷3
20202980.25
n÷5
16162384.2
n2
6530566575710241
n3
5.2774763020154E+23
n4
4.2648299799784E+31
n5
3.4464910342044E+39
2 √n
8989.5450941636
3 √n
432.33972655192
4 √n
94.813211601356
5 √n
38.15004777211
1 , 3 , 19 , 43 , 57 , 129 , 817 , 2451 , 32971 , 98913 , 626449 , 1417753 , 1879347 , 4253259 , 26937307 , 80811921
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
-80811920
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 80811921 can be divided by 16 positive divisors.
The sum of these divisors (counting 80811921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110100010001011110010001
3
Ternary
12122001200010010
4
Quaternary
10310101132101
5
Quinary
131141440141
6
Senary
12004025133
8
Octal
464213621
10
Decimal
80811921
12
Duodecimal
230921a9
16
Hexadecimal
4d11791
20
Vigesimal
15519g1
36
Base36
1c42vl
md5
1207c2d7c5ab148b4312d2cf1928815b
sha1
fbcfb605fc0851dd0d939d941a136c09858d0691
sha256
245465f727c02375abd1fd0851bf53ddabe827fd81a3079bfc536eee9b89c150
sha512
61a5a74a3b400f7f3cfa411690add009a4d6258250a6d8ddcf4a4d5eb18760609d7bb14be3a4e8e52d7143ecb26ae0f3909e7589aeab73604e2cb8db282cbafa
ripemd-160
2c41d88e47ea164096150d2897a27acf596a21da
Diameter
161623842
Circumference
507756274.67216
Area
2.051637997803E+16
Volume
2.2106241039874E+24
Surface area
8.2065519912121E+16
Circumference
507756274.67216
Perimeter
323247684
Area
6530566575710241
Diagonal
114285314.67962
Surface area
39183399454261446
Volume
5.2774763020154E+23
Space diagonal
139970353.02924
Perimeter
242435763
Area
2.8278182778353E+15
Altitude
69985176.514621
Surface area
2.8278182778353E+15
Volume
6.2195654678439E+22
Height
38095104.893208