Properties of the Number -3638

Six Hundred Thirty-Eight

Basics

Value: -3639 → -3638 → -3637

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 17 × 107

Divisors: 1, 2, 17, 34, 107, 214, 1819, 3638

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -111000110110

Octal: -7066

Duodecimal: -2132

Hexadecimal: -e36

Square: 13235044

Square Root: 60.315835400000886

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

a(n) = ∑_d∣n μ(d) * binomial(d + n/d - 2, d-1). A338656

Sum of the first n primes. A7504

Numbers whose sum of divisors is a cube. A20477

Number of primes less than 1000n. A38812

Number of strict integer partitions of n with either (1) no part dividing all the others or (2) no part divisible by all the others. A343382

Number of stacks, or arrangements of n pennies in contiguous rows, each touching 2 in row below. A1524

Number of integer partitions of n whose distinct consecutive subsequences have different sums. A325769

T(n,k) = Half the number of lower triangles of an (n+1) X (n+1) 0..k array with no element equal to the average of its horizontal and vertical neighbors. A194615

Numbers k such that k² * 2^k + 1 is prime. A58780

A051838 gives numbers m such that the sum of first m primes divides the product of the first m primes. This sequence gives corresponding values of the sum of first m primes. A140763