Base | Representation |
---|---|
bin | 11010010000111100… |
… | …000010101011111100 |
3 | 2200210102000201210000 |
4 | 122100330002223330 |
5 | 430224033300044 |
6 | 20542223114300 |
7 | 2015600322234 |
oct | 322074025374 |
9 | 80712021700 |
10 | 28201462524 |
11 | 10a61a99224 |
12 | 5570742990 |
13 | 2875897941 |
14 | 1517632cc4 |
15 | b00cadd69 |
hex | 690f02afc |
28201462524 has 60 divisors (see below), whose sum is σ = 73825394104. Its totient is φ = 9387583776.
The previous prime is 28201462391. The next prime is 28201462529. The reversal of 28201462524 is 42526410282.
28201462524 is a `hidden beast` number, since 2 + 8 + 2 + 0 + 1 + 4 + 625 + 24 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28201462529) 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 19 ways as a sum of consecutive naturals, for example, 178119 + ... + 296865.
Almost surely, 228201462524 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28201462524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36912697052).
28201462524 is an abundant number, since it is smaller than the sum of its proper divisors (45623931580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28201462524 is a wasteful number, since it uses less digits than its factorization.
28201462524 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 119496 (or 119485 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 36.
The spelling of 28201462524 in words is "twenty-eight billion, two hundred one million, four hundred sixty-two thousand, five hundred twenty-four".
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