Properties of the Number 38660

Thirty-Eight Thousand Six Hundred Sixty

Basics

Value: 38659 → 38660 → 38661

Parity: even

Prime: No

Previous Prime: 38653

Next Prime: 38669

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 1933

Divisors: 1, 2, 4, 5, 10, 20, 1933, 3866, 7732, 9665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011100000100

Octal: 113404

Duodecimal: 1A458

Hexadecimal: 9704

Square: 1494595600

Square Root: 196.6214637317096

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

a(n) = ∑_k=1..n k² * floor(n/k)². A350123

Numbers n such that (6ⁿ-1)²-2 is prime. A100901

Number of ways to partition digits 0-9 into signed terms in decreasing absolute value order with sum n. A389952

Smallest n-aspiring number. That is, a(n) = smallest k such that sⁿ(k) is perfect but s^n-1(k) is not, where s(k) is the sum of the aliquot parts of k and sⁱ means iterate s i times. A99771

Indices of triple-safe primes: p=prime(n) is double-safe: q=(p-1)/2, r=(q-1)/2 and s=(r-1)/2 are all prime (and q is double-safe). A75134

a(n) = ∑_d∣n (n-d)^τ(n/d). A345274

G.f. satisfies A(x) = 1 + x·A(x) + x²*A(x)⁵. A182454

Gaps of 10 in sequence A038593 (upper terms). A38660