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28362824240 = 245354535303
BaseRepresentation
bin11010011010100011…
…100101101000110000
32201012122122202102212
4122122203211220300
5431041340333430
621010225431252
72022600012452
oct323243455060
981178582385
1028362824240
1111035090713
1255b679b528
1328a014414a
141530c382d2
15b10034b95
hex69a8e5a30

28362824240 has 20 divisors (see below), whose sum is σ = 65943566544. Its totient is φ = 11345129664.

The previous prime is 28362824227. The next prime is 28362824249. The reversal of 28362824240 is 4242826382.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (28362824249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177267572 + ... + 177267731.

Almost surely, 228362824240 is an apocalyptic number.

28362824240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28362824240 is an abundant number, since it is smaller than the sum of its proper divisors (37580742304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28362824240 is a wasteful number, since it uses less digits than its factorization.

28362824240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354535316 (or 354535310 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 28362824240 in words is "twenty-eight billion, three hundred sixty-two million, eight hundred twenty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 354535303 709070606 1418141212 1772676515 2836282424 3545353030 5672564848 7090706060 14181412120 28362824240