15691381 is an odd 8-digits prime number following 15691380
and preceding 15691382 . In scientific notation, it is written as 1.5691381 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 15691380 positive integers (up to 15691381) that are relatively prime to 15691381.
15691381 has 2 divisors, whose sum is 15691382
The reverse of 15691381 is 18319651
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
fifteen million six hundred ninety-one thousand three hundred eighty-one
Scientific notation
1.5691381 × 10^7
Engineering notation
1.5691381 × 10^6
Prime Factorization
15691381
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
15691381
Product of the distinct prime numbers
The prime factorization of 15691381 is 15691381.
Since it has a total of 1 prime factors.
5 , 7 , 77 , 85 , 625 , 319 , 130 , 8082 , 29716 , 37896 , 246677 , 143723 , 7039454 , 7184459 , 99039072 , 22532316 , 981148374 , 540013730 , 6972865849 , 1478478593
n×2
31382762
n×3
47074143
n×4
62765524
n×5
78456905
n÷2
7845690.5
n÷3
5230460.3333333
n÷3
3922845.25
n÷5
3138276.2
n2
246219437687161
n3
3.863523006355E+21
n4
6.0624011494982E+28
n5
9.5127446211614E+35
2 √n
3961.2347822365
3 √n
250.35353182533
4 √n
62.938341114431
5 √n
27.487309563286
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
15691382
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
7845691
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3961.2349084597
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998725415
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15691381 can be divided by 2 positive divisors.
The sum of these divisors (counting 15691381) is 15691382, the average is 7845691.
Base
System
Value
2
Binary
111011110110111001110101
3
Ternary
1002112012112021
4
Quaternary
323312321311
5
Quinary
13004111011
6
Senary
1320153141
8
Octal
73667165
10
Decimal
15691381
12
Duodecimal
53087b1
16
Hexadecimal
ef6e75
20
Vigesimal
4i1891
36
Base36
9cbjp
md5
8b5beaeceb00c25a38d2d91ccabd5015
sha1
f6683646b08e4ff08caea20dd58afd9496493a0f
sha256
c3d82710803c81124e0dda1b8afad3b7d8a2ac8fcb1daff1496b24ddf7f50865
sha512
fb9979321297e6f0e50ce75cec430c292ae23bfd032a198765f7d3e89cf253d4cf9c6f1995c530a3397839a51bdfb021ee83b86277016e5964ea2e381092b8e6
ripemd-160
f81102184fdf2e213347b121fb15aded263fe6a4
Diameter
31382762
Circumference
98591854.548557
Area
7.7352117660899E+14
Volume
1.6183487324987E+22
Surface area
3.094084706436E+15
Circumference
98591854.548557
Perimeter
62765524
Area
246219437687161
Diagonal
22190963.822563
Surface area
1477316626122966
Volume
3.863523006355E+21
Space diagonal
27178269.132921
Perimeter
47074143
Area
1.066161439713E+14
Altitude
13589134.56646
Surface area
1.066161439713E+14
Volume
4.5532055284398E+20
Height
7396987.9408545