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28573030 = 252857303
BaseRepresentation
bin110110011111…
…1110101100110
31222202122211101
41230333311212
524303314110
62500230314
7464603203
oct154776546
958678741
1028573030
1115146382
12969b39a
135bc5625
143b1acaa
15279613a
hex1b3fd66

28573030 has 8 divisors (see below), whose sum is σ = 51431472. Its totient is φ = 11429208.

The previous prime is 28573009. The next prime is 28573031. The reversal of 28573030 is 3037582.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28573030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428642 + ... + 1428661.

It is an arithmetic number, because the mean of its divisors is an integer number (6428934).

Almost surely, 228573030 is an apocalyptic number.

28573030 is a deficient number, since it is larger than the sum of its proper divisors (22858442).

28573030 is a wasteful number, since it uses less digits than its factorization.

28573030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857310.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 28573030 is about 5345.3746360756. The cubic root of 28573030 is about 305.7164203212.

The spelling of 28573030 in words is "twenty-eight million, five hundred seventy-three thousand, thirty".

Divisors: 1 2 5 10 2857303 5714606 14286515 28573030