The Number

21142

Twenty-One Thousand One Hundred and Forty-Two

In Base 7 Septenary Is

1154327

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

For more familiar numbers: See Twenty-One Thousand One Hundred and Forty-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21139
1154267
Twenty-One Thousand One Hundred and Thirty-Nine in Base 7 Septenary
21140
1154307
Twenty-One Thousand One Hundred and Forty in Base 7 Septenary
21141
1154317
Twenty-One Thousand One Hundred and Forty-One in Base 7 Septenary
21143
1154337
Twenty-One Thousand One Hundred and Forty-Three in Base 7 Septenary
21144
1154347
Twenty-One Thousand One Hundred and Forty-Four in Base 7 Septenary
21145
1154357
Twenty-One Thousand One Hundred and Forty-Five in Base 7 Septenary

Scientific Notation

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

2.1142e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000053644600055354125067

The reciprocal of 21142 in Base 7 Septenary.

Palindrome?

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

The number 1154327 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 one hundred and forty-two is a composite number with 12 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 one hundred and forty-two is a composite number with 12 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 one hundred and forty-two has the following 3 prime factors:

2
27
Two in Base 7 Septenary
11
147
Eleven in Base 7 Septenary
31
437
Thirty-One 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 · 1471 · 4372 = 1154327

Base Conversions

The number twenty-one thousand one hundred and forty-two in 35 different bases