Properties of the Number 26985

Twenty-Six Thousand Nine Hundred Eighty-Five

Basics

Value: 26984 → 26985 → 26986

Parity: odd

Prime: No

Previous Prime: 26981

Next Prime: 26987

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 7 × 257

Divisors: 1, 3, 5, 7, 15, 21, 35, 105, 257, 771

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110100101101001

Octal: 64551

Duodecimal: 13749

Hexadecimal: 6969

Square: 728190225

Square Root: 164.27111736394806

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 of coefficients of certain polynomials used with prime numbers as variables in the computation of the array A103728. A103718

Triangle read by rows: T(n,k) is the number of cycle-up-down permutations of {1,2,...,n} having k cycles (1<=k<=n). A186366

List of codewords in binary lexicode with Hamming distance 8 written as decimal numbers. A75940

Rows of negated binary Walsh matrices interpreted as reverse binary numbers. A228540

Composite numbers k such that ∑_i=1..t-1 d(i+1)/d(i) is prime, where d(1), ..., d(t) are the divisors of k in ascending order. A255585

Number of Hamiltonian planar graphs with n nodes. A49366

Number of primitive (period n) periodic palindromes using a maximum of six different symbols. A56497

Stirling-like triangle by rows generated from (x-1)*(x-1)*(x-2)*(x-3)*(x-4)*... A158471

Numbers whose distance to the nearest cube equals the distance to the nearest product of 3 consecutive integers (three-dimensional oblong). A342873

LCM-convolution of squares A000290 with themselves. A33456