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28084752 = 243365011
BaseRepresentation
bin110101100100…
…0101000010000
31221211212001000
41223020220100
524142203002
62441542000
7460500513
oct153105020
957755030
1028084752
1114942543
1294a4900
135a842c7
143a30d7a
1526eb61c
hex1ac8a10

28084752 has 40 divisors (see below), whose sum is σ = 80614880. Its totient is φ = 9361440.

The previous prime is 28084741. The next prime is 28084769. The reversal of 28084752 is 25748082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32074 + ... + 32937.

It is an arithmetic number, because the mean of its divisors is an integer number (2015372).

Almost surely, 228084752 is an apocalyptic number.

It is an amenable number.

28084752 is an abundant number, since it is smaller than the sum of its proper divisors (52530128).

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

28084752 is a wasteful number, since it uses less digits than its factorization.

28084752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65028 (or 65016 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28084752 is about 5299.5048825338. The cubic root of 28084752 is about 303.9649659535.

The spelling of 28084752 in words is "twenty-eight million, eighty-four thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 65011 130022 195033 260044 390066 520088 585099 780132 1040176 1170198 1560264 1755297 2340396 3120528 3510594 4680792 7021188 9361584 14042376 28084752