The Number

81438

Eighty-One Thousand Four Hundred and Thirty-Eight

In Base 7 Septenary Is

4563007

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

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

Nearby Numbers

Positive, nonzero integers within three units

81435
4562647
Eighty-One Thousand Four Hundred and Thirty-Five in Base 7 Septenary
81436
4562657
Eighty-One Thousand Four Hundred and Thirty-Six in Base 7 Septenary
81437
4562667
Eighty-One Thousand Four Hundred and Thirty-Seven in Base 7 Septenary
81439
4563017
Eighty-One Thousand Four Hundred and Thirty-Nine in Base 7 Septenary
81440
4563027
Eighty-One Thousand Four Hundred and Forty in Base 7 Septenary
81441
4563037
Eighty-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.

8.1438e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000013053410165535246467

The reciprocal of 81438 in Base 7 Septenary.

Palindrome?

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

The number 4563007 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand four hundred and thirty-eight is a composite number with 24 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Eighty-one thousand four hundred and thirty-eight is a composite number with 24 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 eighty-one thousand four hundred and thirty-eight has the following 4 prime factors:

2
27
Two in Base 7 Septenary
3
37
Three in Base 7 Septenary
7
107
Seven in Base 7 Septenary
277
5447
Two Hundred and Seventy-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 · 371 · 1072 · 54471 = 4563007

Base Conversions

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