Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

15661381 (number)

15661381 is an odd 8-digits prime number following 15661380 and preceding 15661382. In scientific notation, it is written as 1.5661381 × 10^7. The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors. There are 15661380 positive integers (up to 15661381) that are relatively prime to 15661381.

Interesting facts

15661381 has 2 divisors, whose sum is 15661382
The reverse of 15661381 is 18316651
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	fifteen million six hundred sixty-one thousand three hundred eighty-one

Notation

Scientific notation	1.5661381 × 10^7
Engineering notation	1.5661381 × 10^6

Prime Factorization of 15661381

Prime Factorization 15661381

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	15661381	Product of the distinct prime numbers

The prime factorization of 15661381 is 15661381. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 4, 84, 28, 901, 635, 2106, 9518, 48672, 38633, 198494, 341550, 6113155, 3412252, 36629908, 79668018, 140265400, 205661021, 3878411498, 5729679503

Basic calculations (n = 15661381)

Multiplication

n×y

n×2	31322762
n×3	46984143
n×4	62645524
n×5	78306905

Division

n÷y

n÷2	7830690.5
n÷3	5220460.3333333
n÷3	3915345.25
n÷5	3132276.2

Exponentiation

n^y

n²	245278854827161
n³	3.8414055966919E+21
n⁴	6.0161716625324E+28
n⁵	9.4221556568323E+35

Nth Root

^y√n

²√n	3957.4462725349
³√n	250.19388160083
⁴√n	62.908236921208
⁵√n	27.476791041816

Divisors of 15661381

1, 15661381

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	15661382	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	7830691	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	3957.446398879	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999998722973	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15661381 can be divided by 2 positive divisors. The sum of these divisors (counting 15661381) is 15661382, the average is 7830691.

Base conversion 15661381

Base	System	Value
2	Binary	111011101111100101000101
3	Ternary	1002110200101011
4	Quaternary	323233211011
5	Quinary	13002131011
6	Senary	1315402221
8	Octal	73574505
10	Decimal	15661381
12	Duodecimal	52b3371
16	Hexadecimal	eef945
20	Vigesimal	4hhd91
36	Base36	9boed

Cryptographic Hash Functions

md5	7c46830473abf9277e2f86ea66619164
sha1	2b0e35e0affcd7093d611ff06550a12b4ca01ed4
sha256	eb78f1680558e17d01b239baf1471868799fc004c41be9950010402aeeb86a83
sha512	f2265e2d4204cdcf2b329d152ea9ceac3305566a5f2149844829428d18c2f3bf2ee28142c8bb172c778d5875a7309f85b872f1602a2d4f8e5101ca5b1eaddca8
ripemd-160	63c8a232690fda9afe3a53cdedd42d5512fe6e97

15661381 as geometric shapes

Circle

Radius = n

Diameter	31322762
Circumference	98403358.989342
Area	7.7056624840593E+14

Sphere

Radius = n

Volume	1.6090842136034E+22
Surface area	3.0822649936237E+15
Circumference	98403358.989342

Square

Length = n

Perimeter	62645524
Area	245278854827161
Diagonal	22148537.415692

Cube

Length = n

Surface area	1471673128962966
Volume	3.8414055966919E+21
Space diagonal	27126307.608694

Equilateral Triangle

Length = n

Perimeter	46984143
Area	1.0620885964574E+14
Altitude	13563153.804347

Triangular Pyramid

Length = n

Surface area	1.0620885964574E+14
Volume	4.5271399111813E+20
Height	7382845.8052308