2187293721 is an odd 10-digits composite number following 2187293720
and preceding 2187293722 . In scientific notation, it is written as 2.187293721 × 10^9.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 1394795952 positive integers (up to 2187293721) that are relatively prime to 2187293721.
2187293721 has 8 divisors, whose sum is 3043191360
The reverse of 2187293721 is 1273927812
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 42
Digital Root 6
Name
two billion one hundred eighty-seven million two hundred ninety-three thousand seven hundred twenty-one
Scientific notation
2.187293721 × 10^9
Engineering notation
2.187293721 × 10^9
Prime Factorization
3 × 23 × 31699909
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2187293721
Product of the distinct prime numbers
The prime factorization of 2187293721 is 3 × 23 × 31699909.
Since it has a total of 3 prime factors.
7 , 5 , 60 , 68 , 520 , 323 , 2100 , 5 , 13704 , 33672 , 370376 , 340424 , 5078216 , 1857591 , 22579612 , 87492488 , 288590828 , 997063827 , 7262654154 , 3573962186
n×2
4374587442
n×3
6561881163
n×4
8749174884
n×5
10936468605
n÷2
1093646860.5
n÷3
729097907
n÷3
546823430.25
n÷5
437458744.2
n2
4784253821926025841
n3
1.0464568344369E+28
n4
2.2889084632614E+37
n5
5.0065151096354E+46
2 √n
46768.512067416
3 √n
1298.0827202757
4 √n
216.26028777243
5 √n
73.787266388321
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2187293720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2187293721 can be divided by 8 positive divisors.
The sum of these divisors (counting 2187293721) is 1, the average is 0.125.
Base
System
Value
2
Binary
10000010010111110111010000011001
3
Ternary
12122102210000220120
4
Quaternary
2002113313100121
5
Quinary
13434421344341
6
Senary
1001013143453
8
Octal
20227672031
10
Decimal
2187293721
12
Duodecimal
51062ab89
16
Hexadecimal
825f7419
20
Vigesimal
1e3abe61
36
Base36
1069amx
md5
3a8d90e518f6fd5a0b4d8b4dd25e0441
sha1
f14b4de3f7c66c6ff7dcbf4b5144d3093c885455
sha256
bf12a13a567125f8e3ad01da41a867dbae69ae1590364aee33632791b68f43cf
sha512
aa7a55bf2f86615a9a76e6d66f1c347dd27469224ee971a41695fafba22bf6a89658589713562822750305cf5519c4efeeb62d86b72b61cc8dbb5323459721ed
ripemd-160
a7682790f4ae3e70852b5353de429f623c299234
Diameter
4374587442
Circumference
13743171770.273
Area
1.5030176659872E+19
Volume
4.3833881378211E+28
Surface area
6.0120706639487E+19
Circumference
13743171770.273
Perimeter
8749174884
Area
4784253821926025841
Diagonal
3093300445.1317
Surface area
2.8705522931556E+19
Volume
1.0464568344369E+28
Space diagonal
3788503855.8484
Perimeter
6561881163
Area
2.0716426739704E+18
Altitude
1894251927.9242
Surface area
2.0716426739704E+18
Volume
1.2332612064156E+27
Height
1031100148.3772