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28950334 = 272837307
BaseRepresentation
bin110111001101…
…1111100111110
32000110211101121
41232123330332
524402402314
62512301154
7501034210
oct156337476
960424347
1028950334
11153838a6
1298417ba
135cc829a
143bb85b0
15281cd24
hex1b9bf3e

28950334 has 16 divisors (see below), whose sum is σ = 49811328. Its totient is φ = 12361752.

The previous prime is 28950331. The next prime is 28950343. The reversal of 28950334 is 43305982.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28950334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28950331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 7615.

It is an arithmetic number, because the mean of its divisors is an integer number (3113208).

Almost surely, 228950334 is an apocalyptic number.

28950334 is a deficient number, since it is larger than the sum of its proper divisors (20860994).

28950334 is a wasteful number, since it uses less digits than its factorization.

28950334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 28950334 is about 5380.5514587261. The cubic root of 28950334 is about 307.0561919021.

The spelling of 28950334 in words is "twenty-eight million, nine hundred fifty thousand, three hundred thirty-four".

Divisors: 1 2 7 14 283 566 1981 3962 7307 14614 51149 102298 2067881 4135762 14475167 28950334