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Properties of the Number 1268

One Thousand Two Hundred Sixty-Eight

Basics

Value: 1267 → 1268 → 1269

Parity: even

Prime: No

Previous Prime: 1259

Next Prime: 1277

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 2 × 317

Divisors: 1, 2, 4, 317, 634, 1268

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011110100

Octal: 2364

Duodecimal: 898

Hexadecimal: 4f4

Square: 1607824

Square Root: 35.608987629529715

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) of number of rooted trees with n nodes and k leaves, 1 <= k <= n. A55277
Number of partitions of n into prime power parts (1 excluded). A23894
Numbers that are the sum of 3 positive 5th powers. A3348
Numbers m such that the Bernoulli number Bm has denominator 30. A51226
a(n) is the number of rooted trees with 2n vertices n of whom are leaves. A185650
Number of partitions of n such that every part divides the largest part; a(0) = 1. A130689
Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m·k + 1)*T(n-1, k, m) + m·f(n,k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = k if k <= floor(n/2) otherwise n-k, and m = 1, read by rows. A157207
Number of partitions of n such that the successive differences of consecutive parts are strictly increasing. A240027
Positive integers not of the form x2 + 2·y2 + 3·2z with x,y,z nonnegative integers. A301472
Positive even numbers that are not the sum of a pair of twin primes. A7534