Base | Representation |
---|---|
bin | 1011110111111… |
… | …1011110100011 |
3 | 10110201100220202 |
4 | 2331333132203 |
5 | 100222231334 |
6 | 4535255415 |
7 | 1143223502 |
oct | 275773643 |
9 | 113640822 |
10 | 49805219 |
11 | 26128442 |
12 | 1481a56b |
13 | a41a859 |
14 | 6886839 |
15 | 458c17e |
hex | 2f7f7a3 |
49805219 has 8 divisors (see below), whose sum is σ = 51992208. Its totient is φ = 47662560.
The previous prime is 49805191. The next prime is 49805233. The reversal of 49805219 is 91250894.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 49805219 - 212 = 49801123 is a prime.
It is a super-2 number, since 2×498052192 = 4961119679275922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (49805279) 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 7 ways as a sum of consecutive naturals, for example, 8777 + ... + 13290.
It is an arithmetic number, because the mean of its divisors is an integer number (6499026).
Almost surely, 249805219 is an apocalyptic number.
49805219 is a deficient number, since it is larger than the sum of its proper divisors (2186989).
49805219 is a wasteful number, since it uses less digits than its factorization.
49805219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22165.
The product of its (nonzero) digits is 25920, while the sum is 38.
The square root of 49805219 is about 7057.2812753921. The cubic root of 49805219 is about 367.9241410862.
The spelling of 49805219 in words is "forty-nine million, eight hundred five thousand, two hundred nineteen".
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