Properties of the Number 7977

Seven Thousand Nine Hundred Seventy-Seven

Basics

Value: 7976 → 7977 → 7978

Parity: odd

Prime: No

Previous Prime: 7963

Next Prime: 7993

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 2659

Divisors: 1, 3, 2659, 7977

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100101001

Octal: 17451

Duodecimal: 4749

Hexadecimal: 1f29

Square: 63632529

Square Root: 89.31405264570633

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

Tribonacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 1, a(1) = 1, a(2) = 0. A81172

a(n) = (3·n⁵ - 35·n⁴ + 145·n³ - 235·n² + 152·n + 30)/30. A161704

Number of integer compositions of n whose leaders of strictly increasing runs are strictly decreasing. A374689

Number of n-step self-avoiding paths on the first octant of a 3-dimensional cubic lattice, starting at the origin. A39648

Prefixing, suffixing or inserting a 7 in the number anywhere gives a prime. A69832

Sum of the fourth largest parts in the partitions of n into 8 parts. A308995

Numbers whose smallest decimal digit is 7. A284068

Number of partitions of n such that m(greatest part) <= m(1), where m = multiplicity. A240077

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 419", based on the 5-celled von Neumann neighborhood. A282071

Numbers m such that 20·m + 1, 80·m + 1, 100·m + 1, and 200·m + 1 are all primes. A372186