Base | Representation |
---|---|
bin | 1011110100100… |
… | …0010001001111 |
3 | 10110021212201111 |
4 | 2331020101033 |
5 | 100143012322 |
6 | 4530352451 |
7 | 1141262305 |
oct | 275102117 |
9 | 113255644 |
10 | 49579087 |
11 | 25a93558 |
12 | 1472b727 |
13 | a36b94c |
14 | 6828275 |
15 | 4545177 |
hex | 2f4844f |
49579087 has 4 divisors (see below), whose sum is σ = 50277456. Its totient is φ = 48880720.
The previous prime is 49579081. The next prime is 49579091. The reversal of 49579087 is 78097594.
It is a happy number.
49579087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78097594 = 2 ⋅39048797.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-49579087 is a prime.
It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
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 49579087.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49579081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349078 + ... + 349219.
It is an arithmetic number, because the mean of its divisors is an integer number (12569364).
Almost surely, 249579087 is an apocalyptic number.
49579087 is a deficient number, since it is larger than the sum of its proper divisors (698369).
49579087 is an equidigital number, since it uses as much as digits as its factorization.
49579087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 698368.
The product of its (nonzero) digits is 635040, while the sum is 49.
The square root of 49579087 is about 7041.2418648985. The cubic root of 49579087 is about 367.3664642024.
The spelling of 49579087 in words is "forty-nine million, five hundred seventy-nine thousand, eighty-seven".
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