Base | Representation |
---|---|
bin | 110110110101… |
… | …0000011011110 |
3 | 2000002110000211 |
4 | 1231222003132 |
5 | 24324332300 |
6 | 2504043034 |
7 | 466223302 |
oct | 155520336 |
9 | 60073024 |
10 | 28745950 |
11 | 15254292 |
12 | 976347a |
13 | 5c5624c |
14 | 3b63d02 |
15 | 27cc4ba |
hex | 1b6a0de |
28745950 has 24 divisors (see below), whose sum is σ = 54027792. Its totient is φ = 11377920.
The previous prime is 28745939. The next prime is 28745953. The reversal of 28745950 is 5954782.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28745953) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1887 + ... + 7813.
It is an arithmetic number, because the mean of its divisors is an integer number (2251158).
It is a vampire number, since it can be written as 4850 ⋅ 5927 (with its own digits).
Almost surely, 228745950 is an apocalyptic number.
28745950 is a deficient number, since it is larger than the sum of its proper divisors (25281842).
28745950 is a wasteful number, since it uses less digits than its factorization.
28745950 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6036 (or 6031 counting only the distinct ones).
The product of its (nonzero) digits is 100800, while the sum is 40.
The square root of 28745950 is about 5361.5249696332. The cubic root of 28745950 is about 306.3318981300.
The spelling of 28745950 in words is "twenty-eight million, seven hundred forty-five thousand, nine hundred fifty".
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