The Number

28021

Twenty-Eight Thousand and Twenty-One

In Base 7 Septenary Is

1444607

The numbers with a 7 subscript use Base 7 Septenary notation.

For more familiar numbers: See Twenty-Eight Thousand and Twenty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

28018
1444547
Twenty-Eight Thousand and Eightteen in Base 7 Septenary
28019
1444557
Twenty-Eight Thousand and Nineteen in Base 7 Septenary
28020
1444567
Twenty-Eight Thousand and Twenty in Base 7 Septenary
28022
1444617
Twenty-Eight Thousand and Twenty-Two in Base 7 Septenary
28023
1444627
Twenty-Eight Thousand and Twenty-Three in Base 7 Septenary
28024
1444637
Twenty-Eight Thousand and Twenty-Four in Base 7 Septenary

Scientific Notation

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

2.8021e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000041250561334554022347

The reciprocal of 28021 in Base 7 Septenary.

Palindrome?

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

The number 1444607 is not a palindrome.

Not A Prime Number

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

Twenty-eight thousand and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Twenty-eight thousand and twenty-one 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 twenty-eight thousand and twenty-one has the following 2 prime factors:

7
107
Seven in Base 7 Septenary
4003
144467
Four Thousand and Three in Base 7 Septenary

Prime Factorization

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

1071 · 1444671 = 1444607

Base Conversions

The number twenty-eight thousand and twenty-one in 35 different bases