Base | Representation |
---|---|
bin | 110110001100… |
… | …0001111011000 |
3 | 1222110102100100 |
4 | 1230120033120 |
5 | 24233121330 |
6 | 2452535400 |
7 | 463326303 |
oct | 154301730 |
9 | 58412310 |
10 | 28410840 |
11 | 15045537 |
12 | 9621560 |
13 | 5b69863 |
14 | 3ab7b3a |
15 | 2763060 |
hex | 1b183d8 |
28410840 has 48 divisors (see below), whose sum is σ = 92336400. Its totient is φ = 7576128.
The previous prime is 28410839. The next prime is 28410841. The reversal of 28410840 is 4801482.
It is an interprime number because it is at equal distance from previous prime (28410839) and next prime (28410841).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28410841) 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, 39100 + ... + 39819.
It is an arithmetic number, because the mean of its divisors is an integer number (1923675).
Almost surely, 228410840 is an apocalyptic number.
28410840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28410840 is an abundant number, since it is smaller than the sum of its proper divisors (63925560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28410840 is a wasteful number, since it uses less digits than its factorization.
28410840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78936 (or 78929 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 27.
The square root of 28410840 is about 5330.1819856361. The cubic root of 28410840 is about 305.1368730829.
The spelling of 28410840 in words is "twenty-eight million, four hundred ten thousand, eight hundred forty".
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