Properties of the Number -397575

Three Hundred Ninety-Seven Thousand Five Hundred Seventy-Five

Basics

Value: -397576 → -397575 → -397574

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 ² × 19 × 31

Divisors: 1, 3, 5, 9, 15, 19, 25, 27, 31, 45

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -1100001000100000111

Octal: -1410407

Duodecimal: -1720B3

Hexadecimal: -61107

Square: 158065880625

Square Root: 630.535486709511

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

Smallest b > 1 such that b^p-1 == 1 (mod p⁴) for p = prime(n). A353937

Odd numbers n such that 2n/σ(n) - 1 = 1/x for some positive integer x. A222263

Group the triangular numbers so that the n-th group sum is a multiple of n. 1, (3, 6, 10, 15), (21), (28), (36, 45, 55, 66, 78), (91, 105, 120, 136, 153, 171, 190), ... Sequence contains the group sums. A114031

Numbers whose abundancy, σ(n)/n, is 1024/513. A230148

Terms of A222263 such that 2n/σ(n) - 1 = 1/2^k, for some integer k. A230166