13691881 is an odd 8-digits composite number following 13691880
and preceding 13691882 . In scientific notation, it is written as 1.3691881 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 11735892 positive integers (up to 13691881) that are relatively prime to 13691881.
13691881 has 4 divisors, whose sum is 15647872
The reverse of 13691881 is 18819631
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
thirteen million six hundred ninety-one thousand eight hundred eighty-one
Scientific notation
1.3691881 × 10^7
Engineering notation
1.3691881 × 10^6
Prime Factorization
7 × 1955983
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13691881
Product of the distinct prime numbers
The prime factorization of 13691881 is 7 × 1955983.
Since it has a total of 2 prime factors.
9 , 4 , 15 , 91 , 158 , 802 , 6471 , 5214 , 40749 , 21532 , 344487 , 603270 , 4604415 , 4684374 , 69569171 , 99976927 , 656230350 , 651458310 , 3641150599 , 1874689966
n×2
27383762
n×3
41075643
n×4
54767524
n×5
68459405
n÷2
6845940.5
n÷3
4563960.3333333
n÷3
3422970.25
n÷5
2738376.2
n2
187467605318161
n3
2.5667841433712E+21
n4
3.5144103043726E+28
n5
4.8118887672643E+35
2 √n
3700.2541804584
3 √n
239.23297369287
4 √n
60.829714617598
5 √n
26.748080599491
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-13691880
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 13691881 can be divided by 4 positive divisors.
The sum of these divisors (counting 13691881) is 1, the average is 0.25.
Base
System
Value
2
Binary
110100001110101111101001
3
Ternary
221202121201201
4
Quaternary
310032233221
5
Quinary
12001120011
6
Senary
1205244201
8
Octal
64165751
10
Decimal
13691881
12
Duodecimal
4703661
16
Hexadecimal
d0ebe9
20
Vigesimal
45b9e1
36
Base36
85gq1
md5
571e76cc36671a847517f4a6bf7fdcf1
sha1
ac8d432713bc134fdebde7e159a036a0d047e5a1
sha256
832ca906f32053aeefcb3f601f22092a60d6ff4d9149068e30a22b7d763480ca
sha512
e770036f631607118d8716410098073a056d8fd826ce6e268d4c7898ab6b24ad846b2ee73a6cc3f5edbc5b938bedf45735e09b31dc45090782c849e77456a2dd
ripemd-160
03594d5519739c63b76dd33b48d6a2ba62f6902a
Diameter
27383762
Circumference
86028625.526851
Area
5.8894685165361E+14
Volume
1.0751720277554E+22
Surface area
2.3557874066144E+15
Circumference
86028625.526851
Perimeter
54767524
Area
187467605318161
Diagonal
19363243.804598
Surface area
1124805631908966
Volume
2.5667841433712E+21
Space diagonal
23715033.543187
Perimeter
41075643
Area
81175854296081
Altitude
11857516.771593
Surface area
81175854296081
Volume
3.0249841226998E+20
Height
6454414.6015328