Math question: What is the sum of the digits in the number 678?

To find the sum of the digits, we add 6 + 7 + 8, which equals 21.

Math question: What is the sum of the digits in the number 678?

The sum can be found by adding the individual digits together: 6 + 7 + 8 = 21.

Math question: What is the sum of the digits in the number 678?

To find the sum of the digits in the number 678, we add each digit together. The digit at the hundreds place is 6, at the tens place is 7, and at the ones place is 8. Adding these together, 6 + 7 + 8 = 21. Therefore, the sum of the digits in the number 678 is 21.

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

678 (number)

678 is an even 3-digits composite number following 677 and preceding 679. In scientific notation, it is written as 6.78 × 10^2. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 224 positive integers (up to 678) that are relatively prime to 678.

Interesting facts

678 has 8 divisors, whose sum is 1368
The reverse of 678 is 876
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 3
Sum of Digits 21
Digital Root 3

Name

Name	six hundred seventy-eight

Notation

Scientific notation	6.78 × 10^2
Engineering notation	6.78 × 10^0

Prime Factorization of 678

Prime Factorization 2 × 3 × 113

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	678	Product of the distinct prime numbers

The prime factorization of 678 is 2 × 3 × 113. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 12, 37, 960, 586, 984, 1154, 89676, 10892, 977525, 7299, 1436589, 5213256, 71440208, 37689800, 671500698, 240041622, 2537366346, 7038142558

Basic calculations (n = 678)

Multiplication

n×y

n×2	1356
n×3	2034
n×4	2712
n×5	3390

Division

n÷y

n÷2	339
n÷3	226
n÷3	169.5
n÷5	135.6

Exponentiation

n^y

n²	459684
n³	311665752
n⁴	211309379856
n⁵	143267759542368

Nth Root

^y√n

²√n	26.038433132583
³√n	8.7850296436363
⁴√n	5.1027868006201
⁵√n	3.683375022613

Divisors of 678

1, 2, 3, 6, 113, 226, 339, 678

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-677	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 678 can be divided by 8 positive divisors. The sum of these divisors (counting 678) is 1, the average is 0.125.

Base conversion 678

Base	System	Value
2	Binary	1010100110
3	Ternary	221010
4	Quaternary	22212
5	Quinary	10203
6	Senary	3050
8	Octal	1246
10	Decimal	678
12	Duodecimal	486
16	Hexadecimal	2a6
20	Vigesimal	1di
36	Base36	iu

Cryptographic Hash Functions

md5	9fe8593a8a330607d76796b35c64c600
sha1	b2029ba5ea1042d78c96d3888897571eea8c27fa
sha256	cebe3d9d614ba5c19f633566104315854a11353a333bf96f16b5afa0e90abdc4
sha512	c7d57e5c0b0792b154d573089792d80f5b64d2bc0cf4d7d1f551a9e4a4966e925d06b253cc9662c01df76623fdfecb812a2a0604119cb1ac37c47e8027e94cb5
ripemd-160	79b146c871ee59b27df01b4f9d4c1e23f578be54

678 as geometric shapes

Circle

Radius = n

Diameter	1356
Circumference	4259.9996382678
Area	1444139.8773728

Sphere

Radius = n

Volume	1305502449.145
Surface area	5776559.5094911
Circumference	4259.9996382678

Square

Length = n

Perimeter	2712
Area	459684
Diagonal	958.83679528896

Cube

Length = n

Surface area	2758104
Volume	311665752
Space diagonal	1174.3304475317

Equilateral Triangle

Length = n

Perimeter	2034
Area	199049.01085662
Altitude	587.16522376585

Triangular Pyramid

Length = n

Surface area	199049.01085662
Volume	36730161.117134
Height	319.61226509632