Properties of the Number 77641

Seventy-Seven Thousand Six Hundred Forty-One

Basics

Value: 77640 → 77641 → 77642

Parity: odd

Prime: Yes

Previous Prime: 77621

Next Prime: 77647

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 77641

Divisors: 1, 77641

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010111101001001

Octal: 227511

Duodecimal: 38B21

Hexadecimal: 12f49

Square: 6028124881

Square Root: 278.6413465370852

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 perfect-powers·in the range 2ⁿ <= x < 2ⁿ⁺¹. A377435

Primes of the form x² + 18480·y². A173274

Primes p such that p,q,r,s are consecutive primes and 2p+9, 2q+9, 2r+9, 2s+9 are also primes. A190354

Terms k of A112998 such that k+2 is nonsquarefree. A328160

Primes p such that there exist primes p'<p"<p"'<p""<p such that the concatenation of any two among the {p,...,p""} is prime. A139005

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (0, 0, 1), (0, 1, 1), (1, 1, 0)}. A151033

Number of squarefree integers in closed interval [n, 2n-1], i.e., among n consecutive numbers beginning with n. A77641