2561491 is an odd 7-digits prime number following 2561490
and preceding 2561492 . In scientific notation, it is written as 2.561491 × 10^6.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 2561490 positive integers (up to 2561491) that are relatively prime to 2561491.
2561491 has 2 divisors, whose sum is 2561492
The reverse of 2561491 is 1941652
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
two million five hundred sixty-one thousand four hundred ninety-one
Scientific notation
2.561491 × 10^6
Engineering notation
2.561491 × 10^6
Prime Factorization
2561491
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
2561491
Product of the distinct prime numbers
The prime factorization of 2561491 is 2561491.
Since it has a total of 1 prime factors.
9 , 4 , 80 , 18 , 466 , 583 , 8798 , 2474 , 1086 , 36615 , 745827 , 761707 , 9031029 , 7419518 , 51733328 , 33491977 , 991197128 , 994290408 , 6388870608 , 2813564050
n×2
5122982
n×3
7684473
n×4
10245964
n×5
12807455
n÷2
1280745.5
n÷3
853830.33333333
n÷3
640372.75
n÷5
512298.2
n2
6561236143081
n3
1.6806547329377E+19
n4
4.3049819725272E+25
n5
1.1027172577791E+32
2 √n
1600.4658696767
3 √n
136.82462864373
4 √n
40.005822947125
5 √n
19.129277479391
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
2561492
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
1280746
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1600.4661820857
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999992192051
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2561491 can be divided by 2 positive divisors.
The sum of these divisors (counting 2561491) is 2561492, the average is 1280746.
Base
System
Value
2
Binary
1001110001010111010011
3
Ternary
11211010201001
4
Quaternary
21301113103
5
Quinary
1123431431
6
Senary
130522431
8
Octal
11612723
10
Decimal
2561491
12
Duodecimal
a36417
16
Hexadecimal
2715d3
20
Vigesimal
g03eb
36
Base36
1iwgj
md5
b126b18d2cd249d437a324349f544d2c
sha1
526b9043aafe1c54494915869f91cf330268d883
sha256
85cd0ecccd68bfad92994f06d1613f07300aaf640054ce32604968b0b7f7b8fd
sha512
f4bbd830249b886f1b08fca3c0335a0886be08b206784569f7858852bd4d729117da71c0dac04872a0f7224e5d98e928b391e62cfbb295fc767c0907fe6b7b5e
ripemd-160
62b42eaca1f61e6420d4713911c90b2ddb9aea27
Diameter
5122982
Circumference
16094322.615673
Area
20612731265571
Volume
7.0399100829572E+19
Surface area
82450925062284
Circumference
16094322.615673
Perimeter
10245964
Area
6561236143081
Diagonal
3622495.3120966
Surface area
39367416858486
Volume
1.6806547329377E+19
Space diagonal
4436632.5551304
Perimeter
7684473
Area
2841098590068.4
Altitude
2218316.2775652
Surface area
2841098590068.4
Volume
1.9806705974892E+18
Height
1207498.4373655