Base | Representation |
---|---|
bin | 1101000111100… |
… | …1110101010101 |
3 | 10211112120002021 |
4 | 3101321311111 |
5 | 103041244411 |
6 | 5243213141 |
7 | 1235463454 |
oct | 321716525 |
9 | 124476067 |
10 | 55024981 |
11 | 290730a0 |
12 | 165171b1 |
13 | b52767b |
14 | 7444b9b |
15 | 4c6da71 |
hex | 3479d55 |
55024981 has 8 divisors (see below), whose sum is σ = 60098400. Its totient is φ = 49963440.
The previous prime is 55024979. The next prime is 55024987. The reversal of 55024981 is 18942055.
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 55024981 - 21 = 55024979 is a prime.
It is a super-2 number, since 2×550249812 = 6055497068100722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55024987) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8755 + ... + 13663.
It is an arithmetic number, because the mean of its divisors is an integer number (7512300).
Almost surely, 255024981 is an apocalyptic number.
It is an amenable number.
55024981 is a deficient number, since it is larger than the sum of its proper divisors (5073419).
55024981 is a wasteful number, since it uses less digits than its factorization.
55024981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5939.
The product of its (nonzero) digits is 14400, while the sum is 34.
The square root of 55024981 is about 7417.8825145725. The cubic root of 55024981 is about 380.3528140615.
The spelling of 55024981 in words is "fifty-five million, twenty-four thousand, nine hundred eighty-one".
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