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28483774 = 2111983821
BaseRepresentation
bin110110010101…
…0000010111110
31222121010101121
41230222002332
524242440044
62454301154
7464052034
oct154520276
958533347
1028483774
1115095310
1296577ba
135b93b07
143ad6554
152779984
hex1b2a0be

28483774 has 32 divisors (see below), whose sum is σ = 49714560. Its totient is φ = 12103200.

The previous prime is 28483769. The next prime is 28483783. The reversal of 28483774 is 47738482.

It is a super-2 number, since 2×284837742 = 1622650762566152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28483774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34284 + ... + 35104.

It is an arithmetic number, because the mean of its divisors is an integer number (1553580).

Almost surely, 228483774 is an apocalyptic number.

28483774 is a deficient number, since it is larger than the sum of its proper divisors (21230786).

28483774 is a wasteful number, since it uses less digits than its factorization.

28483774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its digits is 301056, while the sum is 43.

The square root of 28483774 is about 5337.0192055116. The cubic root of 28483774 is about 305.3977574988.

The spelling of 28483774 in words is "twenty-eight million, four hundred eighty-three thousand, seven hundred seventy-four".

Divisors: 1 2 11 19 22 38 83 166 209 418 821 913 1577 1642 1826 3154 9031 15599 17347 18062 31198 34694 68143 136286 171589 343178 749573 1294717 1499146 2589434 14241887 28483774