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28763030 = 252876303
BaseRepresentation
bin110110110111…
…0001110010110
32000010022110102
41231232032112
524330404110
62504254102
7466324142
oct155561626
960108412
1028763030
11152660aa
129771332
135c60c5a
143b6a222
1527d25a5
hex1b6e396

28763030 has 8 divisors (see below), whose sum is σ = 51773472. Its totient is φ = 11505208.

The previous prime is 28763011. The next prime is 28763051. The reversal of 28763030 is 3036782.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28762984 and 28763002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438142 + ... + 1438161.

It is an arithmetic number, because the mean of its divisors is an integer number (6471684).

Almost surely, 228763030 is an apocalyptic number.

28763030 is a deficient number, since it is larger than the sum of its proper divisors (23010442).

28763030 is a wasteful number, since it uses less digits than its factorization.

28763030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876310.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 28763030 is about 5363.1175635073. The cubic root of 28763030 is about 306.3925572593.

The spelling of 28763030 in words is "twenty-eight million, seven hundred sixty-three thousand, thirty".

Divisors: 1 2 5 10 2876303 5752606 14381515 28763030