Properties of the Number 2978

Two Thousand Nine Hundred Seventy-Eight

Basics

Value: 2977 → 2978 → 2979

Parity: even

Prime: No

Previous Prime: 2971

Next Prime: 2999

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 1489

Divisors: 1, 2, 1489, 2978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110100010

Octal: 5642

Duodecimal: 1882

Hexadecimal: ba2

Square: 8868484

Square Root: 54.57105459856901

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 integer compositions of n with all equal run-sums. A353851

Numbers n such that BCR(n) = n, where BCR = binary-complement-and-reverse = take one's complement then reverse bit order. A35928

Number of partitions of n containing no part i of multiplicity i. A276429

Number of partitions satisfying (cn(2,5) = cn(3,5) = 0). A36820

Numbers k such that 6^k+5^k-1 is prime. A93765

Number of positive words of length n in the monoid Br₃ of positive braids on 4 strands. A97550

Conjecturally largest even integer which is an unordered sum of two primes in exactly n ways. A954

Maximum number of regions into which the plane is divided by n triangles. A77588

Number of partitions of n into distinct parts such that the successive differences of consecutive parts are nondecreasing. A179255

a(n) = A353750(n) - A353749(n). A353757