Base | Representation |
---|---|
bin | 111101111001011011111 |
3 | 10211001020120 |
4 | 13233023133 |
5 | 1004401010 |
6 | 111250023 |
7 | 23145165 |
oct | 7571337 |
9 | 3731216 |
10 | 2028255 |
11 | 1165949 |
12 | 819913 |
13 | 560268 |
14 | 3ab235 |
15 | 2a0e70 |
hex | 1ef2df |
2028255 has 16 divisors (see below), whose sum is σ = 3386880. Its totient is φ = 1034528.
The previous prime is 2028241. The next prime is 2028263. The reversal of 2028255 is 5528202.
It is a cyclic number.
It is not a de Polignac number, because 2028255 - 24 = 2028239 is a prime.
It is a super-2 number, since 2×20282552 = 8227636690050, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595 + ... + 3284.
It is an arithmetic number, because the mean of its divisors is an integer number (211680).
22028255 is an apocalyptic number.
2028255 is a deficient number, since it is larger than the sum of its proper divisors (1358625).
2028255 is a wasteful number, since it uses less digits than its factorization.
2028255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5910.
The product of its (nonzero) digits is 1600, while the sum is 24.
The square root of 2028255 is about 1424.1681782711. The cubic root of 2028255 is about 126.5826505029.
The spelling of 2028255 in words is "two million, twenty-eight thousand, two hundred fifty-five".
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