The Number

21438

Twenty-One Thousand Four Hundred and Thirty-Eight

In Base 7 Septenary Is

1163347

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

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

Nearby Numbers

Positive, nonzero integers within three units

21435
1163317
Twenty-One Thousand Four Hundred and Thirty-Five in Base 7 Septenary
21436
1163327
Twenty-One Thousand Four Hundred and Thirty-Six in Base 7 Septenary
21437
1163337
Twenty-One Thousand Four Hundred and Thirty-Seven in Base 7 Septenary
21439
1163357
Twenty-One Thousand Four Hundred and Thirty-Nine in Base 7 Septenary
21440
1163367
Twenty-One Thousand Four Hundred and Forty in Base 7 Septenary
21441
1163407
Twenty-One Thousand Four Hundred and Forty-One in Base 7 Septenary

Scientific Notation

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

2.1438e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000053262244400344350267

The reciprocal of 21438 in Base 7 Septenary.

Palindrome?

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

The number 1163347 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand four hundred and thirty-eight is a composite number with 16 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Twenty-one thousand four hundred and thirty-eight is a composite number with 16 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-one thousand four hundred and thirty-eight has the following 3 prime factors:

2
27
Two in Base 7 Septenary
3
37
Three in Base 7 Septenary
397
11057
Three Hundred and Ninety-Seven in Base 7 Septenary

Prime Factorization

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

271 · 373 · 110571 = 1163347

Base Conversions

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