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28067834 = 231597673
BaseRepresentation
bin110101100010…
…0011111111010
31221210222211102
41223010133322
524141132314
62441331402
7460400264
oct153043772
957728742
1028067834
1114930863
129496b62
135a796b2
143a28b34
1526e65de
hex1ac47fa

28067834 has 16 divisors (see below), whose sum is σ = 44202240. Its totient is φ = 13349280.

The previous prime is 28067801. The next prime is 28067839. The reversal of 28067834 is 43876082.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28067839) 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, 179 + ... + 7494.

It is an arithmetic number, because the mean of its divisors is an integer number (2762640).

Almost surely, 228067834 is an apocalyptic number.

28067834 is a deficient number, since it is larger than the sum of its proper divisors (16134406).

28067834 is a wasteful number, since it uses less digits than its factorization.

28067834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28067834 is about 5297.9084552302. The cubic root of 28067834 is about 303.9039184471.

The spelling of 28067834 in words is "twenty-eight million, sixty-seven thousand, eight hundred thirty-four".

Divisors: 1 2 31 59 62 118 1829 3658 7673 15346 237863 452707 475726 905414 14033917 28067834