The Number

1389

One Thousand Three Hundred and Eighty-Nine

In Base 8 Octal Is

25558

The numbers with a 8 subscript use Base 8 Octal notation.

For more familiar numbers: See One Thousand Three Hundred and Eighty-Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1386
25528
One Thousand Three Hundred and Eighty-Six in Base 8 Octal
1387
25538
One Thousand Three Hundred and Eighty-Seven in Base 8 Octal
1388
25548
One Thousand Three Hundred and Eighty-Eight in Base 8 Octal
1390
25568
One Thousand Three Hundred and Ninety in Base 8 Octal
1391
25578
One Thousand Three Hundred and Ninety-One in Base 8 Octal
1392
25608
One Thousand Three Hundred and Ninety-Two in Base 8 Octal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.389e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0002745650212461744568

The reciprocal of 1389 in Base 8 Octal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 25558 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

One thousand three hundred and eighty-nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 8 Octal

A Composite

Composites have more than just these two factors.

One thousand three hundred and eighty-nine is a composite number with 4 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number one thousand three hundred and eighty-nine has the following 2 prime factors:

3
38
Three in Base 8 Octal
463
7178
Four Hundred and Sixty-Three in Base 8 Octal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

381 · 71781 = 25558

Base Conversions

The number one thousand three hundred and eighty-nine in 35 different bases