Base | Representation |
---|---|
bin | 110101100100… |
… | …1010001100011 |
3 | 1221211222122220 |
4 | 1223021101203 |
5 | 24142244040 |
6 | 2442002123 |
7 | 460511310 |
oct | 153112143 |
9 | 57758586 |
10 | 28087395 |
11 | 14944526 |
12 | 94a6343 |
13 | 5a8557b |
14 | 3a31d07 |
15 | 26ec2d0 |
hex | 1ac9463 |
28087395 has 32 divisors (see below), whose sum is σ = 53022720. Its totient is φ = 12424320.
The previous prime is 28087373. The next prime is 28087429. The reversal of 28087395 is 59378082.
It is not a de Polignac number, because 28087395 - 26 = 28087331 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1060 + ... + 7569.
It is an arithmetic number, because the mean of its divisors is an integer number (1656960).
Almost surely, 228087395 is an apocalyptic number.
28087395 is a deficient number, since it is larger than the sum of its proper divisors (24935325).
28087395 is a wasteful number, since it uses less digits than its factorization.
28087395 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8675.
The product of its (nonzero) digits is 120960, while the sum is 42.
The square root of 28087395 is about 5299.7542395851. The cubic root of 28087395 is about 303.9745008333.
It can be divided in two parts, 28087 and 395, that added together give a palindrome (28482).
The spelling of 28087395 in words is "twenty-eight million, eighty-seven thousand, three hundred ninety-five".
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