The Number

1638

One Thousand Six Hundred and Thirty-Eight

In Base 7 Septenary Is

45307

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

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

Nearby Numbers

Positive, nonzero integers within three units

1635
45247
One Thousand Six Hundred and Thirty-Five in Base 7 Septenary
1636
45257
One Thousand Six Hundred and Thirty-Six in Base 7 Septenary
1637
45267
One Thousand Six Hundred and Thirty-Seven in Base 7 Septenary
1639
45317
One Thousand Six Hundred and Thirty-Nine in Base 7 Septenary
1640
45327
One Thousand Six Hundred and Forty in Base 7 Septenary
1641
45337
One Thousand Six 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.

1.638e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000131552621200131552647

The reciprocal of 1638 in Base 7 Septenary.

Palindrome?

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

The number 45307 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 six 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.

One thousand six 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 one thousand six 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
13
167
Thirteen 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 · 372 · 1071 · 1671 = 45307

Base Conversions

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