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28814154 = 2367229313
BaseRepresentation
bin110110111101…
…0101101001010
32000012220120220
41231322231022
524334023104
62505330510
7466626165
oct155725512
960186526
1028814154
11152a0556
129796a36
135c7b2c5
143b80adc
1527e27d9
hex1b7ab4a

28814154 has 32 divisors (see below), whose sum is σ = 58931520. Its totient is φ = 9389952.

The previous prime is 28814131. The next prime is 28814173. The reversal of 28814154 is 45141882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91902 + ... + 92214.

It is an arithmetic number, because the mean of its divisors is an integer number (1841610).

Almost surely, 228814154 is an apocalyptic number.

28814154 is an abundant number, since it is smaller than the sum of its proper divisors (30117366).

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

28814154 is a wasteful number, since it uses less digits than its factorization.

28814154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 10240, while the sum is 33.

The square root of 28814154 is about 5367.8817051049. The cubic root of 28814154 is about 306.5739792877.

The spelling of 28814154 in words is "twenty-eight million, eight hundred fourteen thousand, one hundred fifty-four".

Divisors: 1 2 3 6 67 134 201 229 313 402 458 626 687 939 1374 1878 15343 20971 30686 41942 46029 62913 71677 92058 125826 143354 215031 430062 4802359 9604718 14407077 28814154