Base | Representation |
---|---|
bin | 11010001011010101… |
… | …101100100010001101 |
3 | 2200112212021011200012 |
4 | 122023111230202031 |
5 | 430031011233422 |
6 | 20525025443005 |
7 | 2013350004542 |
oct | 321325544215 |
9 | 80485234605 |
10 | 28107524237 |
11 | 10a13a67a81 |
12 | 55451a0465 |
13 | 285c297260 |
14 | 1508d7cbc9 |
15 | ae79054e2 |
hex | 68b56c88d |
28107524237 has 8 divisors (see below), whose sum is σ = 30455347104. Its totient is φ = 25786230768.
The previous prime is 28107524213. The next prime is 28107524287. The reversal of 28107524237 is 73242570182.
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 28107524237 - 28 = 28107523981 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28107524194 and 28107524203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28107524287) 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 7 ways as a sum of consecutive naturals, for example, 6630143 + ... + 6634380.
It is an arithmetic number, because the mean of its divisors is an integer number (3806918388).
Almost surely, 228107524237 is an apocalyptic number.
It is an amenable number.
28107524237 is a deficient number, since it is larger than the sum of its proper divisors (2347822867).
28107524237 is a wasteful number, since it uses less digits than its factorization.
28107524237 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13264699.
The product of its (nonzero) digits is 188160, while the sum is 41.
The spelling of 28107524237 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-four thousand, two hundred thirty-seven".
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