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

15661991 (number)

15661991 is an odd 8-digits prime number following 15661990 and preceding 15661992. In scientific notation, it is written as 1.5661991 × 10^7. The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors. There are 15661990 positive integers (up to 15661991) that are relatively prime to 15661991.

Interesting facts

15661991 has 2 divisors, whose sum is 15661992
The reverse of 15661991 is 19916651
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	fifteen million six hundred sixty-one thousand nine hundred ninety-one

Notation

Scientific notation	1.5661991 × 10^7
Engineering notation	1.5661991 × 10^6

Prime Factorization of 15661991

Prime Factorization 15661991

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	15661991	Product of the distinct prime numbers

The prime factorization of 15661991 is 15661991. Since it has a total of 1 prime factors.

Most popular turbo-numbers

8, 7, 58, 21, 445, 671, 5060, 2850, 60949, 3769, 144521, 584237, 7525132, 9564371, 20764787, 80044749, 225604136, 37504860, 9603683242, 2461246496

Basic calculations (n = 15661991)

Multiplication

n×y

n×2	31323982
n×3	46985973
n×4	62647964
n×5	78309955

Division

n÷y

n÷2	7830995.5
n÷3	5220663.6666667
n÷3	3915497.75
n÷5	3132398.2

Exponentiation

n^y

n²	245297962084081
n³	3.8418544744792E+21
n⁴	6.0171090202603E+28
n⁵	9.4239907321336E+35

Nth Root

^y√n

²√n	3957.5233416873
³√n	250.19712985176
⁴√n	62.908849470383
⁵√n	27.477005078898

Divisors of 15661991

1, 15661991

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	15661992	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	7830996	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	3957.523468029	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999998723023	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15661991 can be divided by 2 positive divisors. The sum of these divisors (counting 15661991) is 15661992, the average is 7830996.

Base conversion 15661991

Base	System	Value
2	Binary	111011101111101110100111
3	Ternary	1002110201012202
4	Quaternary	323233232213
5	Quinary	13002140431
6	Senary	1315405115
8	Octal	73575647
10	Decimal	15661991
12	Duodecimal	52b379b
16	Hexadecimal	eefba7
20	Vigesimal	4hhejb
36	Base36	9bovb

Cryptographic Hash Functions

md5	5cc45810a3f629af35ec2912e6fb0fec
sha1	c019f4516578bde8923d3569828ade9afa4e19fd
sha256	00f4241c8241440bf419847c576530caad48d3b4d6c590c6a81e9919ad5605d6
sha512	d93dab6cbb5f556dbbe018d5c8e5a17b39f981ca9f60621eddd90b7e7512876ecb011a0bd2ff7b25d7775b0a182e89bff3ea3c32cfb4f4fa0aa2cf88ec86203a
ripemd-160	2f99b26f3136eb412b55f01c04a9ebbd30f2f4c2

15661991 as geometric shapes

Circle

Radius = n

Diameter	31323982
Circumference	98407191.732379
Area	7.706262756239E+14

Sphere

Radius = n

Volume	1.6092722390913E+22
Surface area	3.0825051024956E+15
Circumference	98407191.732379

Square

Length = n

Perimeter	62647964
Area	245297962084081
Diagonal	22149400.085965

Cube

Length = n

Surface area	1471787772504486
Volume	3.8418544744792E+21
Space diagonal	27127364.159686

Equilateral Triangle

Length = n

Perimeter	46985973
Area	1.0621713333068E+14
Altitude	13563682.079843

Triangular Pyramid

Length = n

Surface area	1.0621713333068E+14
Volume	4.5276689187269E+20
Height	7383133.3619885