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28010632 = 2313269333
BaseRepresentation
bin110101011011…
…0100010001000
31221201002100211
41222312202020
524132320012
62440210504
7460041436
oct152664210
957632324
1028010632
11148a1891
129469a34
135a59650
143a11d56
1526d46a7
hex1ab6888

28010632 has 16 divisors (see below), whose sum is σ = 56560140. Its totient is φ = 12927936.

The previous prime is 28010629. The next prime is 28010657. The reversal of 28010632 is 23601082.

It can be written as a sum of positive squares in 2 ways, for example, as 22221796 + 5788836 = 4714^2 + 2406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134563 + ... + 134770.

Almost surely, 228010632 is an apocalyptic number.

It is an amenable number.

28010632 is an abundant number, since it is smaller than the sum of its proper divisors (28549508).

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

28010632 is a wasteful number, since it uses less digits than its factorization.

28010632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269352 (or 269348 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28010632 is about 5292.5071563485. The cubic root of 28010632 is about 303.6973268643.

The spelling of 28010632 in words is "twenty-eight million, ten thousand, six hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 269333 538666 1077332 2154664 3501329 7002658 14005316 28010632