Prime number 7

Interestingness: 37 · Rank #4 of 1000

Visual representations

Binary image (n×n bits)
Element N – Nitrogen
Heptagonal · P7(2) = 7
7
Prime factorization

Representations of 7

Greek numeral
ζʹ
Sanskrit numeral
७
Arabic numeral
٧
Roman numeral
VII
Maya numeral
●●
▃▃▃▃▃
Chinese numeral
七
Hebrew numeral
ז
Egyptian numeral
𓏹𓏹𓏹𓏹𓏹𓏹𓏹
Morse code
--...

7 in different numeral systems

Binary
111
Base-3
21
Base-4
13
Base-5
12
Base-6
11
Base-7
10
Base-8
7
Duodecimal
7
Hex
7
Vigesimal
7
Base-24
7
Base-36
7
Negabinary
11011

Number-theory characteristics (13)

Heptagonal Difference of 2 squares Odious number Lucas number Mersenne Odd Ones-Zeroes Prime number Gaussian prime Mersenne prime Safe prime Deficient Twin Prime

Base-10 digit properties (7)

These depend on the decimal representation of the number.

Palindromic Harshad Repdigit Spy number Happy number Narcissistic Zuckerman number

Related primes

Number 7 prime
Prime number before 7
Prime number after 7