Base | Representation |
---|---|
bin | 1101000111000… |
… | …0101101100011 |
3 | 10211110122211111 |
4 | 3101300231203 |
5 | 103034100434 |
6 | 5242324151 |
7 | 1235246521 |
oct | 321605543 |
9 | 124418744 |
10 | 54987619 |
11 | 29048015 |
12 | 164b9657 |
13 | b51366b |
14 | 7435311 |
15 | 4c62964 |
hex | 3470b63 |
54987619 has 8 divisors (see below), whose sum is σ = 55495440. Its totient is φ = 54482400.
The previous prime is 54987607. The next prime is 54987629. The reversal of 54987619 is 91678945.
54987619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 54987619 - 213 = 54979427 is a prime.
It is a super-2 number, since 2×549876192 = 6047276486578322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (54987629) 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 7 ways as a sum of consecutive naturals, for example, 83112 + ... + 83770.
It is an arithmetic number, because the mean of its divisors is an integer number (6936930).
Almost surely, 254987619 is an apocalyptic number.
54987619 is a deficient number, since it is larger than the sum of its proper divisors (507821).
54987619 is a wasteful number, since it uses less digits than its factorization.
54987619 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1301.
The product of its digits is 544320, while the sum is 49.
The square root of 54987619 is about 7415.3637132645. The cubic root of 54987619 is about 380.2667079623.
The spelling of 54987619 in words is "fifty-four million, nine hundred eighty-seven thousand, six hundred nineteen".
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