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28655050 = 252573101
BaseRepresentation
bin110110101001…
…1110111001010
31222220211100011
41231103313022
524313430200
62502102134
7465364264
oct155236712
958824304
1028655050
11151a1a66
12971a94a
135c23a68
143b3cb34
1527b05ba
hex1b53dca

28655050 has 12 divisors (see below), whose sum is σ = 53298486. Its totient is φ = 11462000.

The previous prime is 28655041. The next prime is 28655051. The reversal of 28655050 is 5055682.

It can be written as a sum of positive squares in 3 ways, for example, as 26347689 + 2307361 = 5133^2 + 1519^2 .

It is a super-2 number, since 2×286550502 = 1642223781005000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28655051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286501 + ... + 286600.

Almost surely, 228655050 is an apocalyptic number.

28655050 is a deficient number, since it is larger than the sum of its proper divisors (24643436).

28655050 is a wasteful number, since it uses less digits than its factorization.

28655050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573113 (or 573108 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 28655050 is about 5353.0411916965. The cubic root of 28655050 is about 306.0086645132.

The spelling of 28655050 in words is "twenty-eight million, six hundred fifty-five thousand, fifty".

Divisors: 1 2 5 10 25 50 573101 1146202 2865505 5731010 14327525 28655050