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28913295 = 351927553
BaseRepresentation
bin110111001001…
…0111010001111
32000101221120210
41232102322033
524400211140
62511413503
7500521215
oct156227217
960357523
1028913295
1115358a94
129824293
135cb4478
143ba8cb5
152811d80
hex1b92e8f

28913295 has 8 divisors (see below), whose sum is σ = 46261296. Its totient is φ = 15420416.

The previous prime is 28913293. The next prime is 28913309. The reversal of 28913295 is 59231982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28913295 - 21 = 28913293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28913293) 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, 963762 + ... + 963791.

It is an arithmetic number, because the mean of its divisors is an integer number (5782662).

Almost surely, 228913295 is an apocalyptic number.

28913295 is a deficient number, since it is larger than the sum of its proper divisors (17348001).

28913295 is a wasteful number, since it uses less digits than its factorization.

28913295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927561.

The product of its digits is 38880, while the sum is 39.

The square root of 28913295 is about 5377.1084236790. The cubic root of 28913295 is about 306.9251869891.

The spelling of 28913295 in words is "twenty-eight million, nine hundred thirteen thousand, two hundred ninety-five".

Divisors: 1 3 5 15 1927553 5782659 9637765 28913295