Properties of the Number 72412

Seventy-Two Thousand Four Hundred Twelve

Basics

Value: 72411 → 72412 → 72413

Parity: even

Prime: No

Previous Prime: 72383

Next Prime: 72421

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 43 × 421

Divisors: 1, 2, 4, 43, 86, 172, 421, 842, 1684, 18103

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001101011011100

Octal: 215334

Duodecimal: 35AA4

Hexadecimal: 11adc

Square: 5243497744

Square Root: 269.09477884195377

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

Numbers k such that ∑_j=1..k j^φ(j) == 0 (mod k). A227429

a(n) = ∑_{k=0..floor(n/2)} (-1)^k * binomial(2·n-2·k-1,n-2·k). A371798

Numbers k such that the LCM of exponents in the prime factorization of k does not equal the largest exponent. A72412

Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A300211