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

1981491 (number)

1981491 is an odd 7-digits composite number following 1981490 and preceding 1981492. In scientific notation, it is written as 1.981491 × 10^6. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 1251432 positive integers (up to 1981491) that are relatively prime to 1981491.

Interesting facts

1981491 has 4 divisors, whose sum is 2016312
The reverse of 1981491 is 1941891
Previous prime number is 57

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 33
Digital Root 6

Name

Name	one million nine hundred eighty-one thousand four hundred ninety-one

Notation

Scientific notation	1.981491 × 10^6
Engineering notation	1.981491 × 10^6

Prime Factorization of 1981491

Prime Factorization 57 × 34763

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1981491	Product of the distinct prime numbers

The prime factorization of 1981491 is 57 × 34763. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 3, 23, 36, 838, 739, 4603, 8704, 71390, 85579, 594701, 753434, 8492539, 1604621, 16348024, 25948282, 926327808, 181161583, 7006961249, 9249782961

Basic calculations (n = 1981491)

Multiplication

n×y

n×2	3962982
n×3	5944473
n×4	7925964
n×5	9907455

Division

n÷y

n÷2	990745.5
n÷3	660497
n÷3	495372.75
n÷5	396298.2

Exponentiation

n^y

n²	3926306583081
n³	7779941157615753771
n⁴	1.5415883384345E+25
n⁵	3.054643418313E+31

Nth Root

^y√n

²√n	1407.6544320251
³√n	125.60223517599
⁴√n	37.51872108728
⁵√n	18.171819771372

Divisors of 1981491

1, 57, 34763, 1981491

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	-1981490	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 1981491 can be divided by 4 positive divisors. The sum of these divisors (counting 1981491) is 1, the average is 0.25.

Base conversion 1981491

Base	System	Value
2	Binary	111100011110000110011
3	Ternary	10201200002120
4	Quaternary	13203300303
5	Quinary	1001401431
6	Senary	110245323
8	Octal	7436063
10	Decimal	1981491
12	Duodecimal	7b6843
16	Hexadecimal	1e3c33
20	Vigesimal	c7deb
36	Base36	16gxf

Cryptographic Hash Functions

md5	cd740432de7ca99b68f0bff7eafc5759
sha1	1916977b3c47ced603db5ce7fbd028490c7797fb
sha256	0a9d09b4dab842f30983120853de279edbf2acb034ba202452386867119018f7
sha512	dc6870cc3315697a72fce08eed774e5ffb35c8cdb2bf153f57e70099e0b0248c5bc1647d91f8d6e4ce504287d6e6d4a0b59e519c48b5ae62c5039c493af8f6d4
ripemd-160	cd4724e25c57bd4797db72e99053ce5a7a97e8f6

1981491 as geometric shapes

Circle

Radius = n

Diameter	3962982
Circumference	12450075.137509
Area	12334855917149

Sphere

Radius = n

Volume	3.2588541314835E+19
Surface area	49339423668594
Circumference	12450075.137509

Square

Length = n

Perimeter	7925964
Area	3926306583081
Diagonal	2802251.4459202

Cube

Length = n

Surface area	23557839498486
Volume	7779941157615753771
Space diagonal	3432043.0867405

Equilateral Triangle

Length = n

Perimeter	5944473
Area	1700140621997.1
Altitude	1716021.5433702

Triangular Pyramid

Length = n

Surface area	1700140621997.1
Volume	9.1687485829707E+17
Height	934083.81530674