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28541984 = 255316829
BaseRepresentation
bin110110011100…
…0010000100000
31222201002020112
41230320100200
524301320414
62455430452
7464413532
oct154702040
958632215
1028541984
1115125019
129685428
135bb4463
143b0d852
15278bd3e
hex1b38420

28541984 has 24 divisors (see below), whose sum is σ = 57255660. Its totient is φ = 14000896.

The previous prime is 28541983. The next prime is 28541987. The reversal of 28541984 is 48914582.

It can be written as a sum of positive squares in 2 ways, for example, as 27331984 + 1210000 = 5228^2 + 1100^2 .

It is not an unprimeable number, because it can be changed into a prime (28541983) 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, 6719 + ... + 10110.

Almost surely, 228541984 is an apocalyptic number.

It is an amenable number.

28541984 is an abundant number, since it is smaller than the sum of its proper divisors (28713676).

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

28541984 is a wasteful number, since it uses less digits than its factorization.

28541984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16892 (or 16884 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 28541984 is about 5342.4698408133. The cubic root of 28541984 is about 305.6056548939.

The spelling of 28541984 in words is "twenty-eight million, five hundred forty-one thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 16829 33658 67316 134632 269264 538528 891937 1783874 3567748 7135496 14270992 28541984