Base | Representation |
---|---|
bin | 1011011111011… |
… | …1110100111101 |
3 | 10100200212101000 |
4 | 2313313310331 |
5 | 44314413041 |
6 | 4441040513 |
7 | 1123462521 |
oct | 267676475 |
9 | 110625330 |
10 | 48201021 |
11 | 25232160 |
12 | 14186139 |
13 | 9ca861b |
14 | 6589d81 |
15 | 4371bb6 |
hex | 2df7d3d |
48201021 has 16 divisors (see below), whose sum is σ = 77901120. Its totient is φ = 29212560.
The previous prime is 48201019. The next prime is 48201037. The reversal of 48201021 is 12010284.
It is not a de Polignac number, because 48201021 - 21 = 48201019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 48200985 and 48201003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48201011) 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 15 ways as a sum of consecutive naturals, for example, 80850 + ... + 81443.
It is an arithmetic number, because the mean of its divisors is an integer number (4868820).
Almost surely, 248201021 is an apocalyptic number.
It is an amenable number.
48201021 is a deficient number, since it is larger than the sum of its proper divisors (29700099).
48201021 is a wasteful number, since it uses less digits than its factorization.
48201021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162313 (or 162307 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
The square root of 48201021 is about 6942.6955139917. The cubic root of 48201021 is about 363.9307444822.
The spelling of 48201021 in words is "forty-eight million, two hundred one thousand, twenty-one".
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