Properties of the Number -6069

Sixty-Nine

Basics

Value: -6070 → -6069 → -6068

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 17 ²

Divisors: 1, 3, 7, 17, 21, 51, 119, 289, 357, 867

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1011110110101

Octal: -13665

Duodecimal: -3619

Hexadecimal: -17b5

Square: 36832761

Square Root: 77.90378681424929

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

Expansion of exp( ∑_n>=1 -sigma₈(n)*xⁿ/n ) in powers of x. A283338

G.f. A(x) satisfies A(x) = 1 - x/A(x)² * (1 - A(x) - A(x)³). A371889

A triangular sequence of the expansion of: (1-Prime[n])ⁿ: t(n,m)=(-1)^m*Prime[n]^{n - m}*Binomial[n, m]; with Prime[0]=1 defined to extend and lower the results. A141028

a(n) = ceiling((∑_k=1..n-1 a(k)) / 2) for n >= 2 starting with a(1) = 1. A73941

9-gonal (or enneagonal or nonagonal) numbers: a(n) = n*(7·n-5)/2. A1106

Number of monotone Boolean functions of n variables with 2 mincuts. Also number of Sperner systems with 2 blocks. A16269

Triangle read by rows: 2-Stirling numbers of the second kind. A143494

a(n) = ceiling((1 + sum of preceding terms) / 2) starting with a(0) = 1. A5428

a(n) is the smallest number k such that the symmetric representation of σ(k) has n parts. A239663

Square array read by antidiagonals in which T(n,k) is the n-th number j with the property that the symmetric representation of σ(j) has k parts, with j >= 1, n >= 1, k >= 1. A240062