Properties of the Number 774

Seven Hundred Seventy-Four

Basics

Value: 773 → 774 → 775

Parity: even

Prime: No

Previous Prime: 773

Next Prime: 787

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 43

Divisors: 1, 2, 3, 6, 9, 18, 43, 86, 129, 258

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100000110

Octal: 1406

Duodecimal: 546

Hexadecimal: 306

Square: 599076

Square Root: 27.820855486487112

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

Number of rooted trees with n vertices in which vertices at the same level have the same degree. A3238

Sum of totient function: a(n) = ∑_k=1..n φ(k), cf. A000010. A2088

a(1) = 0; for n > 1, a(n) = A000203(A156552(n)). A323243

Numbers k such that k¹⁶ + 1 is prime. A6313

Number of partition into distinct parts (a₁, a₂, ... , a_m) (a₁ > a₂ > ... > a_m and ∑_k=1..m a_k = n) such that a1 - a2, a2 - a₃, ... , a_m-1 - a_m, a_m are different. A320348

Numbers that are the sum of 12 positive 7th powers. A3379

Numbers that are the sum of 11 positive 5th powers. A3356

Numbers whose negated unsorted prime signature is not unimodal. A332642

Numbers whose sum of digits is 18. A235228

a(n) = n*(n + 7)/2. A55999