The Number

128220

One Hundred and Twenty-Eight Thousand Two Hundred and Twenty

In Base 7 Septenary Is

10425517

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

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

Nearby Numbers

Positive, nonzero integers within three units

128217
10425457
One Hundred and Twenty-Eight Thousand Two Hundred and Seventeen in Base 7 Septenary
128218
10425467
One Hundred and Twenty-Eight Thousand Two Hundred and Eightteen in Base 7 Septenary
128219
10425507
One Hundred and Twenty-Eight Thousand Two Hundred and Nineteen in Base 7 Septenary
128221
10425527
One Hundred and Twenty-Eight Thousand Two Hundred and Twenty-One in Base 7 Septenary
128222
10425537
One Hundred and Twenty-Eight Thousand Two Hundred and Twenty-Two in Base 7 Septenary
128223
10425547
One Hundred and Twenty-Eight Thousand Two 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.

1.28220e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000062650234245265411547

The reciprocal of 128220 in Base 7 Septenary.

Palindrome?

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

The number 10425517 is not a palindrome.

Not A Prime Number

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

One hundred and twenty-eight thousand two 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 hundred and twenty-eight thousand two 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 hundred and twenty-eight thousand two hundred and twenty has the following 4 prime factors:

2
27
Two in Base 7 Septenary
3
37
Three in Base 7 Septenary
5
57
Five in Base 7 Septenary
2137
61427
Two Thousand One Hundred and Thirty-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

272 · 371 · 571 · 614271 = 10425517

Base Conversions

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