Properties of the Number -1877

Eight Hundred Seventy-Seven

Basics

Value: -1878 → -1877 → -1876

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 1877

Divisors: 1, 1877

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11101010101

Octal: -3525

Duodecimal: -1105

Hexadecimal: -755

Square: 3523129

Square Root: 43.32435804486894

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) = ∑_i=1..n (-1)ⁱ⁺¹ prime(i)², where prime(k) denotes the k-th prime: alternating sum of the squares of the first n primes. A240860

Primes of the form 2x² + 2xy + 17y². A139827

Primes whose binary representation is also the decimal representation of a prime. A65720

Primes whose decimal representation is a valid number in base 9 and interpreted as such is again a prime. A235395

Number of partitions of n where n divides the product of the parts. A57568

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 3. A146348

Dispersion of A016813 (4k+1, k>1), by antidiagonals. A191667

Primes of the form 30n - 13. A39949

First term of weak prime quartet: p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2). A54819

Numbers k such that there is exactly one prime-power between prime(k)+1 and prime(k+1)-1. A377287