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28956826 = 226355051
BaseRepresentation
bin110111001110…
…1100010011010
32000111011022001
41232131202122
524403104301
62512351214
7501062143
oct156354232
960434261
1028956826
1115388768
12984550a
135ccb222
143bbaaca
15281ec01
hex1b9d89a

28956826 has 8 divisors (see below), whose sum is σ = 43601184. Its totient is φ = 14423100.

The previous prime is 28956757. The next prime is 28956827. The reversal of 28956826 is 62865982.

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

It is not an unprimeable number, because it can be changed into a prime (28956827) 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, 27000 + ... + 28051.

It is an arithmetic number, because the mean of its divisors is an integer number (5450148).

Almost surely, 228956826 is an apocalyptic number.

28956826 is a deficient number, since it is larger than the sum of its proper divisors (14644358).

28956826 is a wasteful number, since it uses less digits than its factorization.

28956826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55316.

The product of its digits is 414720, while the sum is 46.

The square root of 28956826 is about 5381.1547087962. The cubic root of 28956826 is about 307.0791422396.

The spelling of 28956826 in words is "twenty-eight million, nine hundred fifty-six thousand, eight hundred twenty-six".

Divisors: 1 2 263 526 55051 110102 14478413 28956826