Base | Representation |
---|---|
bin | 11010110011111001000000 |
3 | 111020001222222 |
4 | 122303321000 |
5 | 3244401123 |
6 | 410350212 |
7 | 113511431 |
oct | 32637100 |
9 | 14201888 |
10 | 7028288 |
11 | 3a70503 |
12 | 242b368 |
13 | 15c1067 |
14 | d0d488 |
15 | 93c6c8 |
hex | 6b3e40 |
7028288 has 28 divisors (see below), whose sum is σ = 14043660. Its totient is φ = 3489792.
The previous prime is 7028279. The next prime is 7028297. The reversal of 7028288 is 8828207.
It is an interprime number because it is at equal distance from previous prime (7028279) and next prime (7028297).
It can be written as a sum of positive squares in 2 ways, for example, as 1420864 + 5607424 = 1192^2 + 2368^2 .
It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12068 + ... + 12636.
Almost surely, 27028288 is an apocalyptic number.
It is an amenable number.
7028288 is a deficient number, since it is larger than the sum of its proper divisors (7015372).
7028288 is a wasteful number, since it uses less digits than its factorization.
7028288 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 774 (or 764 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 35.
The square root of 7028288 is about 2651.0918505401. The cubic root of 7028288 is about 191.5504528855.
It can be divided in two parts, 70282 and 88, that multiplied together give a palindrome (6184816).
The spelling of 7028288 in words is "seven million, twenty-eight thousand, two hundred eighty-eight".
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