The Number

18991

Eightteen Thousand Nine Hundred and Ninety-One

In Base 3 Ternary Is

2220011013

The numbers with a 3 subscript use Base 3 Ternary notation.

For more familiar numbers: See Eightteen Thousand Nine Hundred and Ninety-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

18988
2220010213
Eightteen Thousand Nine Hundred and Eighty-Eight in Base 3 Ternary
18989
2220010223
Eightteen Thousand Nine Hundred and Eighty-Nine in Base 3 Ternary
18990
2220011003
Eightteen Thousand Nine Hundred and Ninety in Base 3 Ternary
18992
2220011023
Eightteen Thousand Nine Hundred and Ninety-Two in Base 3 Ternary
18993
2220011103
Eightteen Thousand Nine Hundred and Ninety-Three in Base 3 Ternary
18994
2220011113
Eightteen Thousand Nine Hundred and Ninety-Four in Base 3 Ternary

Scientific Notation

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

1.8991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000010002221200122102212222200211020123

The reciprocal of 18991 in Base 3 Ternary.

Palindrome?

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

The number 2220011013 is not a palindrome.

Not A Prime Number

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

Eightteen thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 3 Ternary

A Composite

Composites have more than just these two factors.

Eightteen thousand nine hundred and ninety-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 eightteen thousand nine hundred and ninety-one has the following 2 prime factors:

7
213
Seven in Base 3 Ternary
2713
102011113
Two Thousand Seven Hundred and Thirteen in Base 3 Ternary

Prime Factorization

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

2131 · 1020111131 = 2220011013

Base Conversions

The number eightteen thousand nine hundred and ninety-one in 35 different bases