1621894493 is an odd 10-digits composite number following 1621894492
and preceding 1621894494 . In scientific notation, it is written as 1.621894493 × 10^9.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 1619083008 positive integers (up to 1621894493) that are relatively prime to 1621894493.
1621894493 has 4 divisors, whose sum is 1624705980
The reverse of 1621894493 is 3944981261
Previous prime number is 577
Is Prime? no Number parity odd Number length 10 Sum of Digits 47 Digital Root 2
Name
one billion six hundred twenty-one million eight hundred ninety-four thousand four hundred ninety-three
Scientific notation
1.621894493 × 10^9
Engineering notation
1.621894493 × 10^9
Prime Factorization
577 × 2810909
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1621894493 Product of the distinct prime numbers
The prime factorization of 1621894493 is 577 × 2810909.
Since it has a total of 2 prime factors.
5 , 8 , 42 , 86 , 67 , 681 , 8562 , 8336 , 1707 , 97193 , 644393 , 452103 , 2275084 , 7548640 , 13302865 , 97202327 , 52523303 , 979080759 , 8494290111 , 4817370450
n×2
3243788986
n×3
4865683479
n×4
6487577972
n×5
8109472465
n÷2
810947246.5
n÷3
540631497.66667
n÷3
405473623.25
n÷5
324378898.6
n2
2630541746423727049
n3
4.2664611721312E+27
n4
6.919749879678E+36
n5
1.1223104222787E+46
2 √n40272.751246966
3 √n1174.9179343318
4 √n200.68071966924
5 √n69.503155096366
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1621894492 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 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
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1621894493 can be divided by 4 positive divisors.
The sum of these divisors (counting 1621894493) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000101011000010010101011101
3
Ternary
11012000212202222102
4
Quaternary
1200223002111131
5
Quinary
11310201110433
6
Senary
424534454445
8
Octal
14053022535
10
Decimal
1621894493
12
Duodecimal
393204425
16
Hexadecimal
60ac255d
20
Vigesimal
156ggg4d
36
Base36
qtmtst
md5
71bd56b8cc28a7b46f8fabce2c10b81e
sha1
e1db45a36d60bea1882951655a770adc7ac1779e
sha256
722ae647ac40b945774ab6dcc7934848b6712fd3d480ec4ec14cfcd683206f26
sha512
60e1a0b7a2fd939a01d25cde8256931dafadd303182b560301e418a76b69f0fc9387d9da57840f2d4e77cae6453f3f303a52f79e7e092f8adfa75e0e2286f128
ripemd-160
b3def8796f3c468fb6cb95e389c9f92c018ae511
Diameter
3243788986
Circumference
10190663648.213
Area
8.264090625526E+18
Volume
1.7871310766925E+28
Surface area
3.3056362502104E+19
Circumference
10190663648.213
Perimeter
6487577972
Area
2630541746423727049
Diagonal
2293705188.7388
Surface area
1.5783250478542E+19
Volume
4.2664611721312E+27
Space diagonal
2809203666.3922
Perimeter
4865683479
Area
1.1390579890592E+18
Altitude
1404601833.1961
Surface area
1.1390579890592E+18
Volume
5.0280727108052E+26
Height
764568396.24628