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28760930 = 2511261463
BaseRepresentation
bin110110110110…
…1101101100010
32000010012120122
41231231231202
524330322210
62504240242
7466315052
oct155555542
960105518
1028760930
1115264570
129770082
135c60003
143b69562
1527d1b55
hex1b6db62

28760930 has 16 divisors (see below), whose sum is σ = 56476224. Its totient is φ = 10458480.

The previous prime is 28760929. The next prime is 28760981. The reversal of 28760930 is 3906782.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130622 + ... + 130841.

It is an arithmetic number, because the mean of its divisors is an integer number (3529764).

Almost surely, 228760930 is an apocalyptic number.

28760930 is a deficient number, since it is larger than the sum of its proper divisors (27715294).

28760930 is a wasteful number, since it uses less digits than its factorization.

28760930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261481.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 28760930 is about 5362.9217782847. The cubic root of 28760930 is about 306.3851004646.

The spelling of 28760930 in words is "twenty-eight million, seven hundred sixty thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 261463 522926 1307315 2614630 2876093 5752186 14380465 28760930