Base | Representation |
---|---|
bin | 110110110100… |
… | …0111001010101 |
3 | 2000002012112002 |
4 | 1231220321111 |
5 | 24324204310 |
6 | 2504005045 |
7 | 466203413 |
oct | 155507125 |
9 | 60065462 |
10 | 28741205 |
11 | 15250769 |
12 | 9760785 |
13 | 5c5403c |
14 | 3b622b3 |
15 | 27cada5 |
hex | 1b68e55 |
28741205 has 32 divisors (see below), whose sum is σ = 38223360. Its totient is φ = 20666880.
The previous prime is 28741199. The next prime is 28741213. The reversal of 28741205 is 50214782.
It is not a de Polignac number, because 28741205 - 212 = 28737109 is a prime.
It is a congruent number.
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, 182987 + ... + 183143.
It is an arithmetic number, because the mean of its divisors is an integer number (1194480).
Almost surely, 228741205 is an apocalyptic number.
It is an amenable number.
28741205 is a deficient number, since it is larger than the sum of its proper divisors (9482155).
28741205 is a wasteful number, since it uses less digits than its factorization.
28741205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 269.
The product of its (nonzero) digits is 4480, while the sum is 29.
The square root of 28741205 is about 5361.0824466706. The cubic root of 28741205 is about 306.3150421341.
Adding to 28741205 its reverse (50214782), we get a palindrome (78955987).
The spelling of 28741205 in words is "twenty-eight million, seven hundred forty-one thousand, two hundred five".
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