Base | Representation |
---|---|
bin | 110101110100… |
… | …0010111101111 |
3 | 1222002110101101 |
4 | 1223220113233 |
5 | 24210333032 |
6 | 2444423531 |
7 | 461551540 |
oct | 153502757 |
9 | 58073341 |
10 | 28214767 |
11 | 14a21199 |
12 | 9547ba7 |
13 | 5acb539 |
14 | 3a664c7 |
15 | 2724de7 |
hex | 1ae85ef |
28214767 has 16 divisors (see below), whose sum is σ = 34813440. Its totient is φ = 22331232.
The previous prime is 28214741. The next prime is 28214777. The reversal of 28214767 is 76741282.
It is not a de Polignac number, because 28214767 - 211 = 28212719 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28214707) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1648 + ... + 7690.
It is an arithmetic number, because the mean of its divisors is an integer number (2175840).
Almost surely, 228214767 is an apocalyptic number.
28214767 is a deficient number, since it is larger than the sum of its proper divisors (6598673).
28214767 is a wasteful number, since it uses less digits than its factorization.
28214767 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6102.
The product of its digits is 37632, while the sum is 37.
The square root of 28214767 is about 5311.7574304556. The cubic root of 28214767 is about 304.4333004793.
The spelling of 28214767 in words is "twenty-eight million, two hundred fourteen thousand, seven hundred sixty-seven".
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