12691861 is an odd 8-digits composite number following 12691860
and preceding 12691862 . In scientific notation, it is written as 1.2691861 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 9979200 positive integers (up to 12691861) that are relatively prime to 12691861.
12691861 has 16 divisors, whose sum is 15718528
The reverse of 12691861 is 16819621
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million six hundred ninety-one thousand eight hundred sixty-one
Scientific notation
1.2691861 × 10^7
Engineering notation
1.2691861 × 10^6
Prime Factorization
13 × 7 × 211 × 661
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12691861
Product of the distinct prime numbers
The prime factorization of 12691861 is 13 × 7 × 211 × 661.
Since it has a total of 4 prime factors.
3 , 7 , 80 , 73 , 707 , 89 , 2180 , 8639 , 90327 , 19770 , 396147 , 728502 , 8685743 , 106947 , 21524354 , 34301374 , 937888567 , 133084669 , 6783201628 , 3490915622
n×2
25383722
n×3
38075583
n×4
50767444
n×5
63459305
n÷2
6345930.5
n÷3
4230620.3333333
n÷3
3172965.25
n÷5
2538372.2
n2
161083335643321
n3
2.0444473054014E+21
n4
2.5947841021979E+28
n5
3.2932639150105E+35
2 √n
3562.5638239897
3 √n
233.26080444172
4 √n
59.687216587722
5 √n
26.345416051631
1 , 7 , 13 , 91 , 211 , 661 , 1477 , 2743 , 4627 , 8593 , 19201 , 60151 , 139471 , 976297 , 1813123 , 12691861
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12691860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12691861 can be divided by 16 positive divisors.
The sum of these divisors (counting 12691861) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000011010100110010101
3
Ternary
212212210221221
4
Quaternary
300122212111
5
Quinary
11222114421
6
Senary
1132010341
8
Octal
60324625
10
Decimal
12691861
12
Duodecimal
43009b1
16
Hexadecimal
c1a995
20
Vigesimal
3j69d1
36
Base36
7k13p
md5
10e3e220aee909eddc92701ccadd1dc2
sha1
22c053380fad32c506b23b326ddebaab4c5d55c5
sha256
fb662b1b5888de6741fdfe1d0c5cf0802811cedcfcf71e417bf0700d7c9aed6a
sha512
c4a8bb07f379128a4f1a3d85d71e42fe2331396242a26b8c5b51232af9d02e671373acb437bb99e652ed1d71c83993d6958e27a5f27e4f4483817969a49ea854
ripemd-160
afa6dadbc598a914f379e8d08165e6a67a6091b6
Diameter
25383722
Circumference
79745314.555966
Area
5.060582238728E+14
Volume
8.5637608470672E+21
Surface area
2.0242328954912E+15
Circumference
79745314.555966
Perimeter
50767444
Area
161083335643321
Diagonal
17949001.957954
Surface area
966500013859926
Volume
2.0444473054014E+21
Space diagonal
21982948.094602
Perimeter
38075583
Area
69751130396726
Altitude
10991474.047301
Surface area
69751130396726
Volume
2.4094042557131E+20
Height
5983000.6526514