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28950366 = 2324120021
BaseRepresentation
bin110111001101…
…1111101011110
32000110211102210
41232123331132
524402402431
62512301250
7501034254
oct156337536
960424383
1028950366
1115383925
129841826
135cc82c3
143bb85d4
15281cd46
hex1b9bf5e

28950366 has 16 divisors (see below), whose sum is σ = 58143888. Its totient is φ = 9609600.

The previous prime is 28950359. The next prime is 28950367. The reversal of 28950366 is 66305982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28950367) 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, 8565 + ... + 11456.

It is an arithmetic number, because the mean of its divisors is an integer number (3633993).

Almost surely, 228950366 is an apocalyptic number.

28950366 is an abundant number, since it is smaller than the sum of its proper divisors (29193522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28950366 is a wasteful number, since it uses less digits than its factorization.

28950366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 28950366 is about 5380.5544323982. The cubic root of 28950366 is about 307.0563050360.

The spelling of 28950366 in words is "twenty-eight million, nine hundred fifty thousand, three hundred sixty-six".

Divisors: 1 2 3 6 241 482 723 1446 20021 40042 60063 120126 4825061 9650122 14475183 28950366