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28126032 = 2431153269
BaseRepresentation
bin110101101001…
…0101101010000
31221220221122220
41223102231100
524200013112
62442501040
7461032044
oct153225520
957827586
1028126032
1114970560
129504780
135a9a02c
143a42024
15270898c
hex1ad2b50

28126032 has 40 divisors (see below), whose sum is σ = 79265760. Its totient is φ = 8522880.

The previous prime is 28126013. The next prime is 28126037. The reversal of 28126032 is 23062182.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 28125993 and 28126011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28126037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26107 + ... + 27162.

It is an arithmetic number, because the mean of its divisors is an integer number (1981644).

Almost surely, 228126032 is an apocalyptic number.

28126032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28126032 is an abundant number, since it is smaller than the sum of its proper divisors (51139728).

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

28126032 is a wasteful number, since it uses less digits than its factorization.

28126032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53291 (or 53285 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 28126032 is about 5303.3981558997. The cubic root of 28126032 is about 304.1138193376.

The spelling of 28126032 in words is "twenty-eight million, one hundred twenty-six thousand, thirty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 53269 106538 159807 213076 319614 426152 585959 639228 852304 1171918 1278456 1757877 2343836 2556912 3515754 4687672 7031508 9375344 14063016 28126032