1991453864 is an even 10-digits composite number following 1991453863
and preceding 1991453865 . In scientific notation, it is written as 1.991453864 × 10^9.
The sum of its digits is 50. It has a total of 5 prime factors and 16 positive divisors.
There are 980865072 positive integers (up to 1991453864) that are relatively prime to 1991453864.
1991453864 has 16 divisors, whose sum is 3789708000
The reverse of 1991453864 is 4683541991
Previous prime number is 67
Is Prime? no Number parity even Number length 10 Sum of Digits 50 Digital Root 5
Name
one billion nine hundred ninety-one million four hundred fifty-three thousand eight hundred sixty-four
Scientific notation
1.991453864 × 10^9
Engineering notation
1.991453864 × 10^9
Prime Factorization
2 × 2 × 2 × 67 × 3715399
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
497863466 Product of the distinct prime numbers
The prime factorization of 1991453864 is 2 × 2 × 2 × 67 × 3715399.
Since it has a total of 5 prime factors.
1 , 3 , 9 , 17 , 207 , 120 , 9554 , 6088 , 45379 , 19741 , 458562 , 803446 , 4208527 , 6174665 , 72741869 , 51278267 , 345862142 , 704311634 , 5453639183 , 5483788811
n×2
3982907728
n×3
5974361592
n×4
7965815456
n×5
9957269320
n÷2
995726932
n÷3
663817954.66667
n÷3
497863466
n÷5
398290772.8
n2
3965888492440530496
n3
7.8978839624638E+27
n4
1.5728271534472E+37
n5
3.1322127121366E+46
2 √n44625.708554599
3 √n1258.1239115873
4 √n211.24797881778
5 √n72.415919569108
1 , 2 , 4 , 8 , 67 , 134 , 268 , 536 , 3715399 , 7430798 , 14861596 , 29723192 , 248931733 , 497863466 , 995726932 , 1991453864
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
-1991453863 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 1991453864 can be divided by 16 positive divisors.
The sum of these divisors (counting 1991453864) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101100110010110010101000
3
Ternary
12010210021100010112
4
Quaternary
1312230302302220
5
Quinary
13034303010424
6
Senary
525335433452
8
Octal
16654626250
10
Decimal
1991453864
12
Duodecimal
476b25888
16
Hexadecimal
76b32ca8
20
Vigesimal
1b26bed4
36
Base36
wxnrmw
md5
712725f7f7886c7f0bbae141e107fe87
sha1
4bb90a50f66cb0338199c64edef73af9a5f5b635
sha256
c94dbfa5dd0e7141c9febd53074ca243a3dc771d54e4c1f3788a8a644e624666
sha512
e6a612098c144c681f5d1594f3b15882457ec69c3d5fd535792e78188d1e4ff51647c19ca98a7e4631c379a6393ea2a442d97dd482521f30f502070d70d6d741
ripemd-160
74f402826de51a7dbc342b2468b768d337686658
Diameter
3982907728
Circumference
12512673658.211
Area
1.2459206152807E+19
Volume
3.3082578980508E+28
Surface area
4.983682461123E+19
Circumference
12512673658.211
Perimeter
7965815456
Area
3965888492440530496
Diagonal
2816341063.3091
Surface area
2.3795330954643E+19
Volume
7.8978839624638E+27
Space diagonal
3449299273.3774
Perimeter
5974361592
Area
1.7172800915149E+18
Altitude
1724649636.6887
Surface area
1.7172800915149E+18
Volume
9.3077455114711E+26
Height
938780354.43637