681256989 is an odd 9-digits composite number following 681256988
and preceding 681256990 . In scientific notation, it is written as 6.81256989 × 10^8.
The sum of its digits is 54. It has a total of 5 prime factors and 24 positive divisors.
There are 368800128 positive integers (up to 681256989) that are relatively prime to 681256989.
681256989 has 24 divisors, whose sum is 1183807040
The reverse of 681256989 is 989652186
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 54
Digital Root 9
Name
six hundred eighty-one million two hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
6.81256989 × 10^8
Engineering notation
6.81256989 × 10^6
Prime Factorization
3 × 3 × 7 × 19 × 569137
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
227085663
Product of the distinct prime numbers
The prime factorization of 681256989 is 3 × 3 × 7 × 19 × 569137.
Since it has a total of 5 prime factors.
9 , 6 , 24 , 5 , 146 , 391 , 2663 , 7508 , 95553 , 22297 , 475895 , 4614 , 5843648 , 2632706 , 60319301 , 39570516 , 434389786 , 50946240 , 809283109 , 688557518
n×2
1362513978
n×3
2043770967
n×4
2725027956
n×5
3406284945
n÷2
340628494.5
n÷3
227085663
n÷3
170314247.25
n÷5
136251397.8
n2
464111085061346121
n3
3.1617892037042E+26
n4
2.1539909927682E+35
n5
1.4674214180664E+44
2 √n
26100.900156891
3 √n
879.90744076418
4 √n
161.55773010565
5 √n
58.433539564521
1 , 3 , 7 , 9 , 19 , 21 , 57 , 63 , 133 , 171 , 399 , 1197 , 569137 , 1707411 , 3983959 , 5122233 , 10813603 , 11951877 , 32440809 , 35855631 , 75695221 , 97322427 , 227085663 , 681256989
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-681256988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 681256989 can be divided by 24 positive divisors.
The sum of these divisors (counting 681256989) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
101000100110110010100000011101
3
Ternary
1202110220102220100
4
Quaternary
220212302200131
5
Quinary
2343400210424
6
Senary
151333411313
8
Octal
5046624035
10
Decimal
681256989
12
Duodecimal
170199b39
16
Hexadecimal
289b281d
20
Vigesimal
achh299
36
Base36
b9lp99
md5
7eeb8a79d8451bb808c58df7d9287b52
sha1
e01e59e6f9042dad4177714398c188a94e8eeace
sha256
f14eb76ff88e93064757d6dd374bb4663775e887a04b22b24be1aa6316408be2
sha512
5a3f0e1c75aea0be74e80f9804e964b32be55319f937758c725c88dc1e36ab07b4d12ff792f79e30639f82e61d90d5a99f950480eaf2c6598c4f9d6d5b663c77
ripemd-160
ca2922a25c354df4f2505c441a5bd2bfe204c9b1
Diameter
1362513978
Circumference
4280463903.6982
Area
1.4580479752783E+18
Volume
1.3244071646075E+27
Surface area
5.8321919011132E+18
Circumference
4280463903.6982
Perimeter
2725027956
Area
464111085061346121
Diagonal
963442873.30526
Surface area
2784666510368076726
Volume
3.1617892037042E+26
Space diagonal
1179971717.9594
Perimeter
2043770967
Area
2.0096599492054E+17
Altitude
589985858.9797
Surface area
2.0096599492054E+17
Volume
3.726204311036E+25
Height
321147624.43509