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28956344 = 237945817
BaseRepresentation
bin110111001110…
…1011010111000
32000111010122012
41232131122320
524403100334
62512345052
7501060554
oct156353270
960433565
1028956344
111538836a
129845188
135ccac41
143bba864
15281e9ce
hex1b9d6b8

28956344 has 16 divisors (see below), whose sum is σ = 54981600. Its totient is φ = 14294592.

The previous prime is 28956337. The next prime is 28956349. The reversal of 28956344 is 44365982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28956349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22277 + ... + 23540.

It is an arithmetic number, because the mean of its divisors is an integer number (3436350).

Almost surely, 228956344 is an apocalyptic number.

It is an amenable number.

28956344 is a deficient number, since it is larger than the sum of its proper divisors (26025256).

28956344 is a wasteful number, since it uses less digits than its factorization.

28956344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45902 (or 45898 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28956344 is about 5381.1099226832. The cubic root of 28956344 is about 307.0774384045.

The spelling of 28956344 in words is "twenty-eight million, nine hundred fifty-six thousand, three hundred forty-four".

Divisors: 1 2 4 8 79 158 316 632 45817 91634 183268 366536 3619543 7239086 14478172 28956344