Base | Representation |
---|---|
bin | 1011111110100… |
… | …11010001010111 |
3 | 21000001220202201 |
4 | 11333103101113 |
5 | 201210330322 |
6 | 13545345331 |
7 | 2330031601 |
oct | 577232127 |
9 | 230056681 |
10 | 100480087 |
11 | 5179a1a4 |
12 | 29798247 |
13 | 17a81196 |
14 | d4b8171 |
15 | 8c4bd27 |
hex | 5fd3457 |
100480087 has 4 divisors (see below), whose sum is σ = 101154600. Its totient is φ = 99805576.
The previous prime is 100480067. The next prime is 100480091. The reversal of 100480087 is 780084001.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780084001 = 659 ⋅1183739.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-100480087 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (100480007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337033 + ... + 337330.
It is an arithmetic number, because the mean of its divisors is an integer number (25288650).
Almost surely, 2100480087 is an apocalyptic number.
100480087 is a deficient number, since it is larger than the sum of its proper divisors (674513).
100480087 is an equidigital number, since it uses as much as digits as its factorization.
100480087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 674512.
The product of its (nonzero) digits is 1792, while the sum is 28.
The square root of 100480087 is about 10023.9756085098. The cubic root of 100480087 is about 464.9004866635.
The spelling of 100480087 in words is "one hundred million, four hundred eighty thousand, eighty-seven".
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