Properties of the Number 26012

Twenty-Six Thousand Twelve

Basics

Value: 26011 → 26012 → 26013

Parity: even

Prime: No

Previous Prime: 26003

Next Prime: 26017

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 7 × 929

Divisors: 1, 2, 4, 7, 14, 28, 929, 1858, 3716, 6503

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110010110011100

Octal: 62634

Duodecimal: 13078

Hexadecimal: 659c

Square: 676624144

Square Root: 161.28236109382823

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) = n-th centered n-gonal number. A100119

a(n) = A000041(n) - A032741(n). A167934

a(n) = ∑_d∣n d² * (d+1)/2. A278403

Sum of the first k-1 numbers in the k-th column of the natural number array A000027, by antidiagonals. A185788

Number of 10 X 2 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2·n² (number of collections of 10 zero-sum 2-vectors with total modulus squared not more than 2·n², ignoring vector and component permutations). A192711

Number of (4+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically. A253701

The number of overpartitions of n whose Frobenius symbols have only positive parts in the top row. A347207

Numbers k such that (5·10^k - 107)/3 is prime. A281641

Second differences of Catalan numbers A000108. A26012

Partial sums of A100119. Sum of first n of the n-th centered n-gonal numbers. A130218