81553622 is an even 8-digits composite number following 81553621
and preceding 81553623 . In scientific notation, it is written as 8.1553622 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 39337920 positive integers (up to 81553622) that are relatively prime to 81553622.
81553622 has 16 divisors, whose sum is 126672000
The reverse of 81553622 is 22635518
Previous prime number is 349
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million five hundred fifty-three thousand six hundred twenty-two
Scientific notation
8.1553622 × 10^7
Engineering notation
8.1553622 × 10^6
Prime Factorization
2 × 31 × 349 × 3769
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81553622
Product of the distinct prime numbers
The prime factorization of 81553622 is 2 × 31 × 349 × 3769.
Since it has a total of 4 prime factors.
6 , 4 , 76 , 59 , 406 , 288 , 960 , 559 , 61357 , 58867 , 461337 , 234018 , 1205567 , 8901308 , 99348737 , 58030822 , 320762680 , 174540824 , 5322537352 , 5251722822
n×2
163107244
n×3
244660866
n×4
326214488
n×5
407768110
n÷2
40776811
n÷3
27184540.666667
n÷3
20388405.5
n÷5
16310724.4
n2
6650993261318884
n3
5.4241259035815E+23
n4
4.4235711362109E+31
n5
3.6075824833266E+39
2 √n
9030.7044022047
3 √n
433.65838819089
4 √n
95.030018426836
5 √n
38.219821180153
1 , 2 , 31 , 62 , 349 , 698 , 3769 , 7538 , 10819 , 21638 , 116839 , 233678 , 1315381 , 2630762 , 40776811 , 81553622
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
-81553621
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 81553622 can be divided by 16 positive divisors.
The sum of these divisors (counting 81553622) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111000110100011010110
3
Ternary
12200110100112112
4
Quaternary
10313012203112
5
Quinary
131334203442
6
Senary
12031551022
8
Octal
467064326
10
Decimal
81553622
12
Duodecimal
2338b472
16
Hexadecimal
4dc68d6
20
Vigesimal
159e412
36
Base36
1cjz6e
md5
ef678cf3f3c4c85f519337b8a3f929ca
sha1
7dee2bb76d10c84d3da3cd680bdaf92c837423fe
sha256
085ec31c7854fd2ce120e7f33c2bb51a929dbb3ca641487287bdc77bba70d629
sha512
9920e2f3ca326a12f48fece71ce8ba24bfa3b929baf996f753e3fa6043099202f28046ebe5e1ce6d441cf7ea8b1b9e2b1cafe378db7a1d71d4d6b0c72a2cb891
ripemd-160
f36967f4decb875358353c0085e2890c0f8c24ea
Diameter
163107244
Circumference
512416519.49768
Area
2.0894711568835E+16
Volume
2.272052545445E+24
Surface area
8.3578846275338E+16
Circumference
512416519.49768
Perimeter
326214488
Area
6650993261318884
Diagonal
115334238.29305
Surface area
39905959567913304
Volume
5.4241259035815E+23
Space diagonal
141255016.84527
Perimeter
244660866
Area
2.8799645623506E+15
Altitude
70627508.422633
Surface area
2.8799645623506E+15
Volume
6.3923936807201E+22
Height
38444746.097683