1621994557 is an odd 10-digits composite number following 1621994556
and preceding 1621994558 . In scientific notation, it is written as 1.621994557 × 10^9.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 1621751356 positive integers (up to 1621994557) that are relatively prime to 1621994557.
1621994557 has 4 divisors, whose sum is 1622237760
The reverse of 1621994557 is 7554991261
Previous prime number is 6863
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion six hundred twenty-one million nine hundred ninety-four thousand five hundred fifty-seven
Scientific notation
1.621994557 × 10^9
Engineering notation
1.621994557 × 10^9
Prime Factorization
6863 × 236339
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1621994557 Product of the distinct prime numbers
The prime factorization of 1621994557 is 6863 × 236339.
Since it has a total of 2 prime factors.
8 , 8 , 83 , 60 , 371 , 462 , 2020 , 4331 , 21059 , 85995 , 761554 , 846127 , 7649292 , 2361126 , 31571781 , 13542113 , 699547778 , 143004457 , 9863746211 , 6689915833
n×2
3243989114
n×3
4865983671
n×4
6487978228
n×5
8109972785
n÷2
810997278.5
n÷3
540664852.33333
n÷3
405498639.25
n÷5
324398911.4
n2
2630866342937626249
n3
4.2672508884393E+27
n4
6.921457714402E+36
n5
1.1226566739266E+46
2 √n40273.993556637
3 √n1174.9420963166
4 √n200.6838148846
5 √n69.504012685083
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
-1621994556 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 1621994557 can be divided by 4 positive divisors.
The sum of these divisors (counting 1621994557) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000101011011010110000111101
3
Ternary
11012001001212020111
4
Quaternary
1200223122300331
5
Quinary
11310212311212
6
Senary
424540550021
8
Octal
14053326075
10
Decimal
1621994557
12
Duodecimal
393252311
16
Hexadecimal
60adac3d
20
Vigesimal
156h967h
36
Base36
qtoz0d
md5
97d78dc788ebd9a186787cc9c5782251
sha1
d6868b1718456db76f3452a7bdba73d2dba9e500
sha256
055c4ada2e4c27758f24b5c4627d3e0ff26dc2ead71212dfe9bc0be704d36754
sha512
732b81a9729760c0f2d6e699a42d37ab7a2d0e7cb1408021b6daf45a4387040e816c95edf694a5da4949191b2712eaa92fc8aa8e020667438e290eb703f8ccfe
ripemd-160
ab06ac32042057df1c5d999b15f413b6198da382
Diameter
3243989114
Circumference
10191292368.868
Area
8.2651103755495E+18
Volume
1.7874618722861E+28
Surface area
3.3060441502198E+19
Circumference
10191292368.868
Perimeter
6487978228
Area
2630866342937626249
Diagonal
2293846700.6047
Surface area
1.5785198057626E+19
Volume
4.2672508884393E+27
Space diagonal
2809376982.3242
Perimeter
4865983671
Area
1.1391985434727E+18
Altitude
1404688491.1621
Surface area
1.1391985434727E+18
Volume
5.0290034003996E+26
Height
764615566.86825