Base | Representation |
---|---|
bin | 110110010100… |
… | …1000110101010 |
3 | 1222120221002122 |
4 | 1230221012222 |
5 | 24242324124 |
6 | 2454231242 |
7 | 464034551 |
oct | 154510652 |
9 | 58527078 |
10 | 28479914 |
11 | 15092421 |
12 | 9655522 |
13 | 5b92128 |
14 | 3ad4d98 |
15 | 277875e |
hex | 1b291aa |
28479914 has 16 divisors (see below), whose sum is σ = 44361000. Its totient is φ = 13696704.
The previous prime is 28479907. The next prime is 28479923. The reversal of 28479914 is 41997482.
It can be written as a sum of positive squares in 4 ways, for example, as 15642025 + 12837889 = 3955^2 + 3583^2 .
It is a super-2 number, since 2×284799142 = 1622211002894792, which contains 22 as substring.
It is a nialpdrome in base 12.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17612 + ... + 19160.
Almost surely, 228479914 is an apocalyptic number.
28479914 is a deficient number, since it is larger than the sum of its proper divisors (15881086).
28479914 is a wasteful number, since it uses less digits than its factorization.
28479914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1897.
The product of its digits is 145152, while the sum is 44.
The square root of 28479914 is about 5336.6575681788. The cubic root of 28479914 is about 305.3839614735.
The spelling of 28479914 in words is "twenty-eight million, four hundred seventy-nine thousand, nine hundred fourteen".
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