Math question: What is the sum of the digits of the number 8981?

To find the sum of the digits in 8981, we need to add its individual digits. Adding 8, 9, 8, and 1, we get 26. Therefore, the sum of the digits in 8981 is 26.

Question: What is the sum of the four consecutive prime numbers immediately smaller than 8981?

To find the four consecutive prime numbers smaller than 8981, we start evaluating backward from the given number. By checking divisibility, we can identify the numbers 8971, 8969, 8963, and 8957 as the four consecutive primes preceding 8981. Adding them together, we get: 8971 + 8969 + 8963 + 8957 = 35860. Thus, the sum of the four consecutive prime numbers immediately smaller than 8981 is 35860.

Math question: What is the sum of the digits in the number 8981?

To find the sum of the digits in the number 8981, we add the individual digits: 8 + 9 + 8 + 1 = 26. Explanation: The number 8981 has four digits, which are 8, 9, 8, and 1. By adding these digits, we obtain the sum 26.

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

8981 (number)

8981 is an odd 4-digits composite number following 8980 and preceding 8982. In scientific notation, it is written as 8.981 × 10^3. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 7692 positive integers (up to 8981) that are relatively prime to 8981.

Interesting facts

8981 has 4 divisors, whose sum is 10272
The reverse of 8981 is 1898
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 26
Digital Root 8

Name

Name	eight thousand nine hundred eighty-one

Notation

Scientific notation	8.981 × 10^3
Engineering notation	8.981 × 10^3

Prime Factorization of 8981

Prime Factorization 7 × 1283

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	8981	Product of the distinct prime numbers

The prime factorization of 8981 is 7 × 1283. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 42, 35, 938, 698, 5298, 5045, 4702, 65529, 700215, 8513, 1863600, 2144024, 89059857, 54986577, 665874014, 352413344, 2949302251, 2193144724

Basic calculations (n = 8981)

Multiplication

n×y

n×2	17962
n×3	26943
n×4	35924
n×5	44905

Division

n÷y

n÷2	4490.5
n÷3	2993.6666666667
n÷3	2245.25
n÷5	1796.2

Exponentiation

n^y

n²	80658361
n³	724392740141
n⁴	6505771199206321
n⁵	5.8428331140072E+19

Nth Root

^y√n

²√n	94.768138105589
³√n	20.786190290966
⁴√n	9.7348928142835
⁵√n	6.1753978076727

Divisors of 8981

1, 7, 1283, 8981

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	-8980	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 8981 can be divided by 4 positive divisors. The sum of these divisors (counting 8981) is 1, the average is 0.25.

Base conversion 8981

Base	System	Value
2	Binary	10001100010101
3	Ternary	110022122
4	Quaternary	2030111
5	Quinary	241411
6	Senary	105325
8	Octal	21425
10	Decimal	8981
12	Duodecimal	5245
16	Hexadecimal	2315
20	Vigesimal	1291
36	Base36	6xh

Cryptographic Hash Functions

md5	7b647a7d88f4d6319bf0d600d168dbeb
sha1	eac14c103849acaa85f8ccbc4a1264414a066aca
sha256	0bf366a6fdd643807e24b567a94e9ab1f24ef87d9353b3248e2bc42503766275
sha512	ef8467dcef238e27268fbfb67742dda7dad2f205c3261396e264bd67445435534b11d4438290a7b5c2ec0a33822bf6b50b33fabdb4501714f884e6d90ac0e1cb
ripemd-160	9c3af0d70c07bdc90f1703cd96ea307ef255168d

8981 as geometric shapes

Circle

Radius = n

Diameter	17962
Circumference	56429.28724378
Area	253395714.36819

Sphere

Radius = n

Volume	3034329214321
Surface area	1013582857.4728
Circumference	56429.28724378

Square

Length = n

Perimeter	35924
Area	80658361
Diagonal	12701.052003673

Cube

Length = n

Surface area	483950166
Volume	724392740141
Space diagonal	15555.548302776

Equilateral Triangle

Length = n

Perimeter	26943
Area	34926094.826808
Altitude	7777.774151388

Triangular Pyramid

Length = n

Surface area	34926094.826808
Volume	85370503132.668
Height	4233.6840012243