Properties of the Number 1377

One Thousand Three Hundred Seventy-Seven

Basics

Value: 1376 → 1377 → 1378

Parity: odd

Prime: No

Previous Prime: 1373

Next Prime: 1381

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 17

Divisors: 1, 3, 9, 17, 27, 51, 81, 153, 459, 1377

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101100001

Octal: 2541

Duodecimal: 969

Hexadecimal: 561

Square: 1896129

Square Root: 37.107950630558946

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) = n*(n+3)/2. A96

Odd numbers of the form p^1+4k * r², where p is prime of the form 1+4m, r > 1, and gcd(p,r) = 1. (Euler's criteria for odd perfect numbers). A228058

Antisigma(n): Sum of the numbers less than n that do not divide n. A24816

Numbers that are the sum of 2 positive 4th powers. A3336

Generalized 12-gonal numbers: k*(5·k-4) for k = 0, +-1, +-2, ... A195162

12-gonal (or dodecagonal) numbers: a(n) = n*(5·n-4). A51624

Number of intersections of diagonals in the interior of a regular n-gon. A6561

a(n) = n*(2·n-3). A14107

Product of the 4th power of a prime (A030514) and a different prime (p⁴*q). A178739

a(n) = (n+1)*(2-n)/2. A80956