1620790821 is an odd 10-digits composite number following 1620790820
and preceding 1620790822 . In scientific notation, it is written as 1.620790821 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 997409664 positive integers (up to 1620790821) that are relatively prime to 1620790821.
1620790821 has 12 divisors, whose sum is 2521230348
The reverse of 1620790821 is 1280970261
Previous prime number is 3
Is Prime? no Number parity odd Number length 10 Sum of Digits 36 Digital Root 9
Name
one billion six hundred twenty million seven hundred ninety thousand eight hundred twenty-one
Scientific notation
1.620790821 × 10^9
Engineering notation
1.620790821 × 10^9
Prime Factorization
13 × 3 × 3 × 13852913
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
540263607 Product of the distinct prime numbers
The prime factorization of 1620790821 is 13 × 3 × 3 × 13852913.
Since it has a total of 4 prime factors.
4 , 2 , 52 , 92 , 357 , 810 , 5438 , 5012 , 43411 , 66074 , 109715 , 782922 , 2466720 , 7306105 , 78340922 , 65149320 , 91590313 , 478268673 , 4271821964 , 7599439679
n×2
3241581642
n×3
4862372463
n×4
6483163284
n×5
8103954105
n÷2
810395410.5
n÷3
540263607
n÷3
405197705.25
n÷5
324158164.2
n2
2626962885437854041
n3
4.2577573318253E+27
n4
6.900934001468E+36
n5
1.1184970485906E+46
2 √n40259.046449214
3 √n1174.6513698756
4 √n200.64657098793
5 √n69.493693374331
1 , 3 , 9 , 13 , 39 , 117 , 13852913 , 41558739 , 124676217 , 180087869 , 540263607 , 1620790821
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1620790820 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1620790821 can be divided by 12 positive divisors.
The sum of these divisors (counting 1620790821) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100000100110110100111000100101
3
Ternary
11011221210201000200
4
Quaternary
1200212310320211
5
Quinary
11304410301241
6
Senary
424455101113
8
Octal
14046647045
10
Decimal
1620790821
12
Duodecimal
392971799
16
Hexadecimal
609b4e25
20
Vigesimal
1569ih11
36
Base36
qsz679
md5
fcaa17468f142999540054db038b2bd7
sha1
19c4078dfab746c4114fb5a1d3112a664b6192e4
sha256
ee02b4595b27f6edcbdbe3edd06559c4c3b67931d1c4d072af07092b59e9a324
sha512
6d3db34f99b1d5d7454277d387c5dcdb8624ce13a32c5e9168c467f4971ccae7a168d5bca1e633961ebc0a7cc1804c295caac81b08b75960a23e76a6bc2c11ea
ripemd-160
1efdcef59eb9f2a0deb7f1842c29ce0626378e42
Diameter
3241581642
Circumference
10183729072.519
Area
8.2528473021446E+18
Volume
1.7834852205907E+28
Surface area
3.3011389208578E+19
Circumference
10183729072.519
Perimeter
6483163284
Area
2626962885437854041
Diagonal
2292144360.828
Surface area
1.5761777312627E+19
Volume
4.2577573318253E+27
Space diagonal
2807292050.4133
Perimeter
4862372463
Area
1.137508296794E+18
Altitude
1403646025.2066
Surface area
1.137508296794E+18
Volume
5.0178151366341E+26
Height
764048120.27601