Properties of the Number 43969

Forty-Three Thousand Nine Hundred Sixty-Nine

Basics

Value: 43968 → 43969 → 43970

Parity: odd

Prime: Yes

Previous Prime: 43963

Next Prime: 43973

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 43969

Divisors: 1, 43969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010101111000001

Octal: 125701

Duodecimal: 21541

Hexadecimal: abc1

Square: 1933272961

Square Root: 209.68786326347075

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

Least k such that gcd(prime(k+1)-1, prime(k)-1) = 2n. A67605

a(n) is the largest prime factor of n·2ⁿ-1. A367003

a(n) = A104908(n) - 10·A104863(n). A104909

Number of partitions of n² into at most 10 square parts. A255214

Primes that can be constructed by concatenating two squares >= 4. A345314

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood. A270893

Positive integers m with m^k - 1 (k = 1,...,13) all practical. A294307

a(n) = n⁴ - 6·n³ + 12·n² - 4·n + 1. A27382

Numbers k such that 1 and 3 occur juxtaposed in the base-9 representation of k but not of k+1. A43969