The Number

1820

One Thousand Eight Hundred and Twenty

In Base 7 Septenary Is

52107

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

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

Nearby Numbers

Positive, nonzero integers within three units

1817
52047
One Thousand Eight Hundred and Seventeen in Base 7 Septenary
1818
52057
One Thousand Eight Hundred and Eightteen in Base 7 Septenary
1819
52067
One Thousand Eight Hundred and Nineteen in Base 7 Septenary
1821
52117
One Thousand Eight Hundred and Twenty-One in Base 7 Septenary
1822
52127
One Thousand Eight Hundred and Twenty-Two in Base 7 Septenary
1823
52137
One Thousand Eight Hundred and Twenty-Three in Base 7 Septenary

Scientific Notation

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

1.820e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00012143321160012143327

The reciprocal of 1820 in Base 7 Septenary.

Palindrome?

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

The number 52107 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 eight hundred and twenty 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 eight hundred and twenty 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 eight hundred and twenty has the following 4 prime factors:

2
27
Two in Base 7 Septenary
5
57
Five 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

272 · 571 · 1071 · 1671 = 52107

Base Conversions

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