Base | Representation |
---|---|
bin | 1101111011110… |
… | …1110001010101 |
3 | 11001222111221002 |
4 | 3132331301111 |
5 | 104430331411 |
6 | 5444433045 |
7 | 1306544123 |
oct | 336756125 |
9 | 131874832 |
10 | 58448981 |
11 | 2aaa1648 |
12 | 176a8785 |
13 | c155cc6 |
14 | 7a96913 |
15 | 51e833b |
hex | 37bdc55 |
58448981 has 6 divisors (see below), whose sum is σ = 60396246. Its totient is φ = 56562600.
The previous prime is 58448953. The next prime is 58448989. The reversal of 58448981 is 18984485.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 50836900 + 7612081 = 7130^2 + 2759^2 .
It is not a de Polignac number, because 58448981 - 26 = 58448917 is a prime.
It is a super-2 number, since 2×584489812 = 6832566759876722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (58448989) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29450 + ... + 31371.
It is an arithmetic number, because the mean of its divisors is an integer number (10066041).
Almost surely, 258448981 is an apocalyptic number.
It is an amenable number.
58448981 is a deficient number, since it is larger than the sum of its proper divisors (1947265).
58448981 is an equidigital number, since it uses as much as digits as its factorization.
58448981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60883 (or 60852 counting only the distinct ones).
The product of its digits is 368640, while the sum is 47.
The square root of 58448981 is about 7645.1933265288. The cubic root of 58448981 is about 388.0839196557.
The spelling of 58448981 in words is "fifty-eight million, four hundred forty-eight thousand, nine hundred eighty-one".
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