Properties of the Number -2694

Six Hundred Ninety-Four

Basics

Value: -2695 → -2694 → -2693

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 449

Divisors: 1, 2, 3, 6, 449, 898, 1347, 2694

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101010000110

Octal: -5206

Duodecimal: -1686

Hexadecimal: -a86

Square: 7257636

Square Root: 51.90375708944392

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

Negative integers n such that in balanced ternary representation the number of occurrences of each trit doubles when n is squared. A257868

Triangle read by rows: T(n,k) is the number of compositions of n into nonzero parts with k parts directly followed by a different part, n>=0, 0<=k<=A004523(n-1). A238279

Number of unlabeled planar trees (also called plane trees) with n nodes. A2995

Numbers m such that the Bernoulli number B_m has denominator 42. A51228

G.f.: exp( ∑_n>=1 σ(2n)*xⁿ/n ). A182818

a(0) = 0; thereafter a(n) = a(n-1) + n² if a(n-1) < n², otherwise a(n) = a(n-1) - n². A76042

Values of the difference d for 5 primes in arithmetic progression with the minimal start sequence {5 + j·d}, j = 0 to 4. A206039

Number of partitions of n such that the set of even parts has only one element. A90867

Number of maximal subsets of {1..n} such that it is possible to choose a different binary index of each element. A370640

a(n) = 1·2*3·4 + 5·6*7·8 + 9·10·11·12 + 13·14·15·16 + 17·18·19·20 + ... + (up to n). A319205