21493489 is an odd 8-digits prime number following 21493488
and preceding 21493490 . In scientific notation, it is written as 2.1493489 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 21493488 positive integers (up to 21493489) that are relatively prime to 21493489.
21493489 has 2 divisors, whose sum is 21493490
The reverse of 21493489 is 98439412
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 40 Digital Root 4
Name
twenty-one million four hundred ninety-three thousand four hundred eighty-nine
Scientific notation
2.1493489 × 10^7
Engineering notation
2.1493489 × 10^6
Prime Factorization
21493489
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21493489 Product of the distinct prime numbers
The prime factorization of 21493489 is 21493489.
Since it has a total of 1 prime factors.
7 , 4 , 82 , 68 , 260 , 368 , 1116 , 5819 , 47604 , 12184 , 672364 , 923955 , 2000646 , 1410024 , 41541831 , 46119246 , 483141699 , 678365238 , 6569524850 , 1019136543
n×2
42986978
n×3
64480467
n×4
85973956
n×5
107467445
n÷2
10746744.5
n÷3
7164496.3333333
n÷3
5373372.25
n÷5
4298697.8
n2
461970069393121
n3
9.9293486048303E+21
n4
2.1341634501509E+29
n5
4.5870618640019E+36
2 √n4636.107095398
3 √n278.03681602716
4 √n68.088964564003
5 √n29.272605769464
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21493490 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10746745 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4636.1072032471 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999069486 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493489 can be divided by 2 positive divisors.
The sum of these divisors (counting 21493489) is 21493490, the average is 10746745.
Base
System
Value
2
Binary
1010001111111011011110001
3
Ternary
1111102222112011
4
Quaternary
1101333123301
5
Quinary
21000242424
6
Senary
2044402521
8
Octal
121773361
10
Decimal
21493489
12
Duodecimal
7246441
16
Hexadecimal
147f6f1
20
Vigesimal
6e6de9
36
Base36
csohd
md5
82d179ac8743e99f35e87de2186d5ed7
sha1
6dcb1c18387a36af3e45af3c333f9d9d52de043e
sha256
a043c8e831dbcd56fe817d54b0abbecebdeb06a733f357c145ff72869bed1f0b
sha512
49336f5e0933cf33d7e425c2fc91b61b4c66b42adcab1a250154c12ab068f17a755acf140b300327bcab6557ff77eab18a29a76ede946a10289725df410364c1
ripemd-160
56442a86e39ee6fda79655dd0a1624144f874380
Diameter
42986978
Circumference
135047574.28483
Area
1.4513217761838E+15
Volume
4.1591958175823E+22
Surface area
5.8052871047352E+15
Circumference
135047574.28483
Perimeter
85973956
Area
461970069393121
Diagonal
30396383.646517
Surface area
2771820416358726
Volume
9.9293486048303E+21
Space diagonal
37227814.979923
Perimeter
64480467
Area
2.0003890794125E+14
Altitude
18613907.489961
Surface area
2.0003890794125E+14
Volume
1.1701849552068E+21
Height
10132127.882172