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28569050 = 252571381
BaseRepresentation
bin110110011111…
…0110111011010
31222202110100222
41230332313122
524303202200
62500200042
7464555456
oct154766732
958673328
1028569050
1115143394
129699022
135bc3883
143b19666
152794d85
hex1b3edda

28569050 has 12 divisors (see below), whose sum is σ = 53138526. Its totient is φ = 11427600.

The previous prime is 28569043. The next prime is 28569053. The reversal of 28569050 is 5096582.

It can be written as a sum of positive squares in 3 ways, for example, as 10310521 + 18258529 = 3211^2 + 4273^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28569050.

It is not an unprimeable number, because it can be changed into a prime (28569053) 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 5 ways as a sum of consecutive naturals, for example, 285641 + ... + 285740.

Almost surely, 228569050 is an apocalyptic number.

28569050 is a deficient number, since it is larger than the sum of its proper divisors (24569476).

28569050 is a wasteful number, since it uses less digits than its factorization.

28569050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571393 (or 571388 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 28569050 is about 5345.0023386337. The cubic root of 28569050 is about 305.7022250253.

The spelling of 28569050 in words is "twenty-eight million, five hundred sixty-nine thousand, fifty".

Divisors: 1 2 5 10 25 50 571381 1142762 2856905 5713810 14284525 28569050