Properties of the Number -23957

Twenty-Three Thousand Nine Hundred Fifty-Seven

Basics

Value: -23958 → -23957 → -23956

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 23957

Divisors: 1, 23957

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101110110010101

Octal: -56625

Duodecimal: -11A45

Hexadecimal: -5d95

Square: 573937849

Square Root: 154.7804897265802

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

Primes of the form 36·k² - 810·k + 2753, listed in order of increasing parameter k >= 0. A50268

a(n) = 36·n² - 810·n + 2753, producing the conjectured record number of 45 primes in a contiguous range of n for quadratic polynomials, i.e., abs(a(n)) is prime for 0 <= n < 44. A117081

Primes of the form 36·n² - 810·n + 2753, n >= 0, sorted. A22464

Numbers which are primes and which remain prime for three successive applications of incrementing each digit by 2 with carries ignored. A88787

A094536/2. A94537

a(n) = 1681·n² - 756·n + 85. A157010

Primes q (except greater of twin primes) with result 2 under iterations of {r mod (max prime p < r)} starting at r = q. A175080

Sums of groups in A075635. A75636

a(n) is the largest prime < 11·a(n-1) for n > 1, with a(1) = 2. A126039

Primes p such that continued fraction of (1+sqrt(p))/2 has period 5 : primes in A146330. A146350