Properties of the Number 73421

Seventy-Three Thousand Four Hundred Twenty-One

Basics

Value: 73420 → 73421 → 73422

Parity: odd

Prime: Yes

Previous Prime: 73417

Next Prime: 73433

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 73421

Divisors: 1, 73421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10001111011001101

Octal: 217315

Duodecimal: 365A5

Hexadecimal: 11ecd

Square: 5390643241

Square Root: 270.96309711840837

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 q > 0 such that min { x >= 0 | q + prime(n)*x + x² is composite } is a (local) maximum, cf. A273756 & A273770. A273595

Least p for which min { x >= 0 | p + (2n+1)*x + x² is composite } reaches the (local) maximum given in A273770. A273756

Number of partitions of n such that 4*(greatest part) >= (number of parts). A347868

Number of nX4 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero. A303715

Primes prime(k) such that the sum of the squares of digits of prime(k) equals the sum of the squares of digits of k. A193255

Smallest prime that is the average of the members of exactly n emirp pairs. A178589

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