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28546368 = 263157947
BaseRepresentation
bin110110011100…
…1010101000000
31222201022020220
41230321111000
524301440433
62455503040
7464432364
oct154712500
958638226
1028546368
1115128344
129687a80
135bb6456
143b112a4
15278d2b3
hex1b39540

28546368 has 56 divisors (see below), whose sum is σ = 76090272. Its totient is φ = 9444864.

The previous prime is 28546363. The next prime is 28546387. The reversal of 28546368 is 86364582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28546363) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29671 + ... + 30617.

Almost surely, 228546368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28546368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38045136).

28546368 is an abundant number, since it is smaller than the sum of its proper divisors (47543904).

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

28546368 is a wasteful number, since it uses less digits than its factorization.

28546368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1109 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 28546368 is about 5342.8801221813. The cubic root of 28546368 is about 305.6213009284.

The spelling of 28546368 in words is "twenty-eight million, five hundred forty-six thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 157 192 314 471 628 942 947 1256 1884 1894 2512 2841 3768 3788 5024 5682 7536 7576 10048 11364 15072 15152 22728 30144 30304 45456 60608 90912 148679 181824 297358 446037 594716 892074 1189432 1784148 2378864 3568296 4757728 7136592 9515456 14273184 28546368