Properties of the Number 43987

Forty-Three Thousand Nine Hundred Eighty-Seven

Basics

Value: 43986 → 43987 → 43988

Parity: odd

Prime: Yes

Previous Prime: 43973

Next Prime: 43991

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 43987

Divisors: 1, 43987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010101111010011

Octal: 125723

Duodecimal: 21557

Hexadecimal: abd3

Square: 1934856169

Square Root: 209.73077981068968

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

Total sum of nonprime parts in all partitions of n. A194545

Primes p for which there are exactly as many primes in the range [p², p·nextprime(p)] as there are in the range [p·nextprime(p), nextprime(p)²], where nextprime(p) gives the next prime after prime p. A256472

Positions of new record minima A372935 in A071961. A372936

Primes that remain prime through 4 iterations of function f(x) = 5·x + 6. A23315

Primes p with prime(p)³ + 2·p³ and p³ + 2·prime(p)³ both prime. A236574

Decimal part of cube root of a(n) starts with 3: first term of runs. A34129

Lesser member p of cousin primes (p, p+4) such that (p+1, p+2, p+3) all have the same number of prime divisors (counted with multiplicity). A94230

Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A259004

Roman numerals for n evaluated as if in base 36. A73421

Lesser of cousin happy primes. A387896