Properties of the Number 978

Nine Hundred Seventy-Eight

Basics

Value: 977 → 978 → 979

Parity: even

Prime: No

Previous Prime: 977

Next Prime: 983

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 163

Divisors: 1, 2, 3, 6, 163, 326, 489, 978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111010010

Octal: 1722

Duodecimal: 696

Hexadecimal: 3d2

Square: 956484

Square Root: 31.272991542223778

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

Generalized Catalan numbers: a(n+1) = a(n) + ∑_k=1..n-1 a(k)*a(n-1-k). A4148

Positive integers which apparently never result in a palindrome under repeated applications of the function A056964(x) = x + (x with digits reversed). A23108

Triangle read by rows. Convolution triangle of the prime indicator sequence A089026. A357368

Numbers that are the sum of 10 positive 5th powers. A3355

Numbers that are the sum of 4 nonzero 4th powers. A3338

Number of compositions of n with uniform Lyndon factorization and uniform co-Lyndon factorization. A329398

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

Partitions of n in which each part k occurs at least k times. A117144

Table a(d,m) of number of points of L1 norm m in cubic lattice Z^d, read by antidiagonals (d >= 1, m >= 0). A35607

Lunar primes (formerly called dismal primes) (cf. A087062). A87097