Math Question: What is the sum of the digits in the number 7890?

To find the sum of the digits in the number 7890, we add each digit individually: 7 + 8 + 9 + 0 = 24.

Math question: If the number 7890 is multiplied by 3, subtracted by 150, then divided by 2, what will be the result?

To solve the given problem, we start with the number 7890. Multiplying it by 3 gives 23670. Next, subtracting 150 yields 23520. Finally, dividing this result by 2 gives us 11760 as the final answer.

Math Question: What is the sum of the digits in the number 7890 when multiplied by the ones digit of their cube?

To find the sum, we cube each digit - 7, 8, 9, and 0 - which results in 343, 512, 729, and 0. Now, multiplying these digits (343, 512, 729, and 0) by their respective cubes (0^3, 1^3, 2^3, 3^3), we obtain 0, 512, 1458, and 0. Finally, calculating the sum of these products: 0 + 512 + 1458 + 0 = 1970. Hence, the sum of the digits in 7890 when multiplied by the ones digit of their cube is 1970.

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

7890 (number)

7890 is an even 4-digits composite number following 7889 and preceding 7891. In scientific notation, it is written as 7.890 × 10^3. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 2096 positive integers (up to 7890) that are relatively prime to 7890.

Interesting facts

7890 has 16 divisors, whose sum is 19008
The reverse of 7890 is 0987
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 4
Sum of Digits 24
Digital Root 6

Name

Name	seven thousand eight hundred ninety

Notation

Scientific notation	7.890 × 10^3
Engineering notation	7.890 × 10^3

Prime Factorization of 7890

Prime Factorization 2 × 3 × 5 × 263

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	7890	Product of the distinct prime numbers

The prime factorization of 7890 is 2 × 3 × 5 × 263. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 54, 17, 808, 954, 6277, 9389, 57638, 22414, 728225, 382658, 756352, 1948462, 88224680, 57264188, 544933803, 373551732, 4573070052, 5925387740

Basic calculations (n = 7890)

Multiplication

n×y

n×2	15780
n×3	23670
n×4	31560
n×5	39450

Division

n÷y

n÷2	3945
n÷3	2630
n÷3	1972.5
n÷5	1578

Exponentiation

n^y

n²	62252100
n³	491169069000
n⁴	3875323954410000
n⁵	3.0576306000295E+19

Nth Root

^y√n

²√n	88.82567196481
³√n	19.907909955331
⁴√n	9.4247372358496
⁵√n	6.0174903244268

Divisors of 7890

1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 3945, 7890

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-7889	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 7890 can be divided by 16 positive divisors. The sum of these divisors (counting 7890) is 1, the average is 0.0625.

Base conversion 7890

Base	System	Value
2	Binary	1111011010010
3	Ternary	101211020
4	Quaternary	1323102
5	Quinary	223030
6	Senary	100310
8	Octal	17322
10	Decimal	7890
12	Duodecimal	4696
16	Hexadecimal	1ed2
20	Vigesimal	jea
36	Base36	636

Cryptographic Hash Functions

md5	cdaeb1282d614772beb1e74c192bebda
sha1	ca8032a4ce311bf7f776f1e97ae3bb06bf3fc461
sha256	6a95bbab63d587b596398c4bd7e91a132f24032d2007d107e5ea71967724b092
sha512	4af7a982f850eff53e1287fab34f967c9180909693999ac4c20f68482ac21df88c259999ddc2731b5ba773a0b3eedead05b4f2d8b054fd47890c04b0a2f2866c
ripemd-160	4ec474fe9e468bf63027c84c50b9e60c01394835

7890 as geometric shapes

Circle

Radius = n

Diameter	15780
Circumference	49574.332073647
Area	195570740.03054

Sphere

Radius = n

Volume	2057404185121.3
Surface area	782282960.12215
Circumference	49574.332073647

Square

Length = n

Perimeter	31560
Area	62252100
Diagonal	11158.145007124

Cube

Length = n

Surface area	373512600
Volume	491169069000
Space diagonal	13665.880871718

Equilateral Triangle

Length = n

Perimeter	23670
Area	26955950.019465
Altitude	6832.9404358592

Triangular Pyramid

Length = n

Surface area	26955950.019465
Volume	57884829899.831
Height	3719.3816690412