Base | Representation |
---|---|
bin | 110110010110… |
… | …0010010011100 |
3 | 1222121120222200 |
4 | 1230230102130 |
5 | 24243233311 |
6 | 2454411500 |
7 | 464120562 |
oct | 154542234 |
9 | 58546880 |
10 | 28492956 |
11 | 150a11a8 |
12 | 9660b90 |
13 | 5b9804b |
14 | 3ad9a32 |
15 | 277c556 |
hex | 1b2c49c |
28492956 has 36 divisors (see below), whose sum is σ = 73105032. Its totient is φ = 9355104.
The previous prime is 28492949. The next prime is 28492957. The reversal of 28492956 is 65929482.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28492957) 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, 3495 + ... + 8318.
Almost surely, 228492956 is an apocalyptic number.
It is an amenable number.
28492956 is an abundant number, since it is smaller than the sum of its proper divisors (44612076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28492956 is a wasteful number, since it uses less digits than its factorization.
28492956 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11890 (or 11885 counting only the distinct ones).
The product of its digits is 311040, while the sum is 45.
The square root of 28492956 is about 5337.8793542005. The cubic root of 28492956 is about 305.4305698753.
The spelling of 28492956 in words is "twenty-eight million, four hundred ninety-two thousand, nine hundred fifty-six".
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