Base | Representation |
---|---|
bin | 111101000010101… |
… | …1001110110111011 |
3 | 12021202010012221011 |
4 | 1322011121312323 |
5 | 13143322040422 |
6 | 535124454351 |
7 | 101520504256 |
oct | 17205316673 |
9 | 5252105834 |
10 | 2048236987 |
11 | 9611a3845 |
12 | 491b4a3b7 |
13 | 268466164 |
14 | 15605409d |
15 | bec40077 |
hex | 7a159dbb |
2048236987 has 4 divisors (see below), whose sum is σ = 2048535496. Its totient is φ = 2047938480.
The previous prime is 2048236961. The next prime is 2048236999. The reversal of 2048236987 is 7896328402.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2048236987 - 219 = 2047712699 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2048236987.
It is not an unprimeable number, because it can be changed into a prime (2048237987) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138714 + ... + 152767.
It is an arithmetic number, because the mean of its divisors is an integer number (512133874).
Almost surely, 22048236987 is an apocalyptic number.
2048236987 is a deficient number, since it is larger than the sum of its proper divisors (298509).
2048236987 is an equidigital number, since it uses as much as digits as its factorization.
2048236987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 298508.
The product of its (nonzero) digits is 1161216, while the sum is 49.
The square root of 2048236987 is about 45257.4522813647. The cubic root of 2048236987 is about 1269.9698232026.
The spelling of 2048236987 in words is "two billion, forty-eight million, two hundred thirty-six thousand, nine hundred eighty-seven".
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