Properties of the Number 31123

Thirty-One Thousand One Hundred Twenty-Three

Basics

Value: 31122 → 31123 → 31124

Parity: odd

Prime: Yes

Previous Prime: 31121

Next Prime: 31139

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 31123

Divisors: 1, 31123

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100110010011

Octal: 74623

Duodecimal: 16017

Hexadecimal: 7993

Square: 968641129

Square Root: 176.41711935070248

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

Home primes whose homeliness is 4. A133962

Expansion of x/(1 - 4·x - 11·x²). A15534

Discriminants of imaginary quadratic fields with class number 19 (negated). A46016

Primes which are the sum of three distinct positive cubes in two or more distinct ways. A180088

Primes of the form x³ + y³ + 1, where·and y are primes. A214175

Total sum over all partitions of [n] of the number of maximal blocks. A372649

Primes p such that the multiplicative order of 2 modulo p is (p-1)/7. A152307

Primes of the form (p² - 1)/8 - p, where p is also a prime. A165567

a(1)=1; starting with n>1, concatenate distinct divisors which are in A050376 in increasing order and repeat until a term of A050376 is reached (a(n)=0 if no term of A050376 is ever reached). A248713

Solution of the complementary equation a(n) = 2·a(n-1) - a(n-2) + b(n-1) + n, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences. A294872