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Properties of the Number 31079

Thirty-One Thousand Seventy-Nine

Basics

Value: 31078 → 31079 → 31080

Parity: odd

Prime: Yes

Previous Prime: 31069

Next Prime: 31081

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 31079

Divisors: 1, 31079

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100101100111

Octal: 74547

Duodecimal: 15B9B

Hexadecimal: 7967

Square: 965904241

Square Root: 176.29237079352015

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of connected components of polyhedra in the quarter cubic honeycomb up to translation, rotation, and reflection of the honeycomb. A384274
List of primes p1 such that (p1,p2) are twin primes where both 2·p1+p2 and p1+2·p2 are primes. A174920
T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. A305649
Smaller of twin primes whose middle term is a multiple of A002110(4)=210. A60230
Regular triangle, T(n, k) = f(n, k) - f(n, 0) + 1, where f(n, k) = ∑j=0..k (-1)j*StirlingS2(n, n-j)*binomial(n,j) + ∑j=0..n-k (-1)j*StirlingS2(n, n-j)*binomial(n, j), read by rows. A176156
Index of first occurrence of n-th prime in A001203, the continued fraction for π. A107892
The natural numbers sequence where every composite is replaced by a prime, according to the rule explained in the Comments section (a(n) = -1 if no such prime is reached). A316941
Let n range through the odd numbers skipping multiples of 5; a(n) = n-th prime ending in n. A89779
Prime sequence overlaying the central digits of prime numbers. If possible, the value is greater than the previous one. Zero if no such embedding is possible. A133781
Primes p such that 3·p+2, 5·p+4 and 7·p+6 are also prime. A173876