Properties of the Number -654424

Six Hundred Fifty-Four Thousand Four Hundred Twenty-Four

Basics

Value: -654425 → -654424 → -654423

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 179 × 457

Divisors: 1, 2, 4, 8, 179, 358, 457, 716, 914, 1432

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10011111110001011000

Octal: -2376130

Duodecimal: -276874

Hexadecimal: -9fc58

Square: 428270771776

Square Root: 808.964770555554

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

The sum over all subsets S of [n] of the squares of the number of permutations with descent set = S. A60350

Number T(n,k) of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=k if n>0; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A262372

A(n,k) is the sum of the k-th powers of the descent set statistics for permutations of [n]; square array A(n,k), n>=0, k>=0, read by antidiagonals. A334622

Number of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=8. A321064

Triangular array read by rows. T(n,k) is the number of ordered pairs of n-permutations with exactly k rise/falls or fall/rises, n >= 0, 0 <= k <= max{0,n-1}. A362745