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

91991387 (number)

91991387 is an odd 8-digits composite number following 91991386 and preceding 91991388. In scientific notation, it is written as 9.1991387 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 91609440 positive integers (up to 91991387) that are relatively prime to 91991387.

Interesting facts

91991387 has 4 divisors, whose sum is 92373336
The reverse of 91991387 is 78319919
Previous prime number is 241

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	ninety-one million nine hundred ninety-one thousand three hundred eighty-seven

Notation

Scientific notation	9.1991387 × 10^7
Engineering notation	9.1991387 × 10^6

Prime Factorization of 91991387

Prime Factorization 241 × 381707

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	91991387	Product of the distinct prime numbers

The prime factorization of 91991387 is 241 × 381707. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 14, 96, 579, 743, 7387, 3854, 93252, 60552, 344514, 19688, 5446187, 500253, 38857491, 99546567, 586865807, 372817805, 7790676475, 5452512873

Basic calculations (n = 91991387)

Multiplication

n×y

n×2	183982774
n×3	275974161
n×4	367965548
n×5	459956935

Division

n÷y

n÷2	45995693.5
n÷3	30663795.666667
n÷3	22997846.75
n÷5	18398277.4

Exponentiation

n^y

n²	8462415282183769
n³	7.7846931917808E+23
n⁴	7.1612472408137E+31
n⁵	6.5877306633238E+39

Nth Root

^y√n

²√n	9591.2140524545
³√n	451.4216553684
⁴√n	97.934743847393
⁵√n	39.151592645636

Divisors of 91991387

1, 241, 381707, 91991387

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	-91991386	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 91991387 can be divided by 4 positive divisors. The sum of these divisors (counting 91991387) is 1, the average is 0.25.

Base conversion 91991387

Base	System	Value
2	Binary	101011110111010110101011011
3	Ternary	20102002122110102
4	Quaternary	11132322311123
5	Quinary	142022211022
6	Senary	13043410015
8	Octal	536726533
10	Decimal	91991387
12	Duodecimal	2698390b
16	Hexadecimal	57bad5b
20	Vigesimal	18eii97
36	Base36	1irp0b

Cryptographic Hash Functions

md5	6f853b6a8db831f1813fcd32acdbc53e
sha1	bebca252d7eb6c446815ac8d998f960782f0024f
sha256	cc8ebb57015d07e3f2f9d09ed28183797a413781052fe019390653ae8e2390d4
sha512	ba010f0afd2c4a65b90674dd890ad58a14196a21c16dcae6f7dcc04598f8099596fa1c1c677c400b1ebb9cad71ba6d138bedb150c11bef87466a181967f6267c
ripemd-160	130ce53719e4aba759403b4370d684826e7d887a

91991387 as geometric shapes

Circle

Radius = n

Diameter	183982774
Circumference	577998931.18547
Area	2.6585461682135E+16

Sphere

Radius = n

Volume	3.2608446588999E+24
Surface area	1.0634184672854E+17
Circumference	577998931.18547

Square

Length = n

Perimeter	367965548
Area	8462415282183769
Diagonal	130095467.11691

Cube

Length = n

Surface area	50774491693102614
Volume	7.7846931917808E+23
Space diagonal	159333756.14273

Equilateral Triangle

Length = n

Perimeter	275974161
Area	3.6643333058724E+15
Altitude	79666878.071366

Triangular Pyramid

Length = n

Surface area	3.6643333058724E+15
Volume	9.1743489089416E+22
Height	43365155.705637