Properties of the Number 39130

Thirty-Nine Thousand One Hundred Thirty

Basics

Value: 39129 → 39130 → 39131

Parity: even

Prime: No

Previous Prime: 39119

Next Prime: 39133

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 7 × 13 × 43

Divisors: 1, 2, 5, 7, 10, 13, 14, 26, 35, 43

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100011011010

Octal: 114332

Duodecimal: 1A78A

Hexadecimal: 98da

Square: 1531156900

Square Root: 197.81304304822774

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

Triangle T(n,k) read by rows: number of k X k symmetric (0,1)-matrices with exactly n entries equal to 1 and no zero rows or columns. A135589

Partial sums of A053296. A53308

Greatest number in row n of array T given by A027926. A27988

T(n, 2n-9), T given by A027926. A27932

a(n) = T(2n+1, n+4), T given by A027948. A27956

a(n) = greatest number in row n of array T given by A027948. A27957

a(n) = ∑_{k=0..floor(n/2)} binomial(2·n-k-1,n-2·k). A371870

Alternating sum of 9-gonal (or decagonal) pyramidal numbers. A269440

Products of 5 distinct primes that are sandwiched between squarefree semiprime numbers. A376949

Square array of coefficients in the successive iterations of x·C(x) = (1-sqrt(1-4·x))/2 where C(x) is the g.f. of the Catalan numbers (A000108); read by antidiagonals. A158825