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28234794 = 237739209
BaseRepresentation
bin110101110110…
…1010000101010
31222010110212010
41223231100222
524212003134
62445100350
7461664120
oct153552052
958113763
1028234794
1114a35245
1295576b6
135b076a3
143a6d910
15272ace9
hex1aed42a

28234794 has 32 divisors (see below), whose sum is σ = 65427840. Its totient is φ = 7955712.

The previous prime is 28234793. The next prime is 28234819. The reversal of 28234794 is 49743282.

It is not an unprimeable number, because it can be changed into a prime (28234793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539 + ... + 7670.

It is an arithmetic number, because the mean of its divisors is an integer number (2044620).

Almost surely, 228234794 is an apocalyptic number.

28234794 is an abundant number, since it is smaller than the sum of its proper divisors (37193046).

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

28234794 is a wasteful number, since it uses less digits than its factorization.

28234794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9294.

The product of its digits is 96768, while the sum is 39.

The square root of 28234794 is about 5313.6422536712. The cubic root of 28234794 is about 304.5053129322.

The spelling of 28234794 in words is "twenty-eight million, two hundred thirty-four thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 73 146 219 438 511 1022 1533 3066 9209 18418 27627 55254 64463 128926 193389 386778 672257 1344514 2016771 4033542 4705799 9411598 14117397 28234794