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28095552 = 263371229
BaseRepresentation
bin110101100101…
…1010001000000
31221212101212000
41223023101000
524143024202
62442104000
7460544142
oct153132100
957771760
1028095552
111494a671
1294ab000
135a891b4
143a34c92
1526ee91c
hex1acb440

28095552 has 112 divisors (see below), whose sum is σ = 84124800. Its totient is φ = 9192960.

The previous prime is 28095541. The next prime is 28095553. The reversal of 28095552 is 25559082.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28095553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122574 + ... + 122802.

Almost surely, 228095552 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 28095552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42062400).

28095552 is an abundant number, since it is smaller than the sum of its proper divisors (56029248).

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

28095552 is a wasteful number, since it uses less digits than its factorization.

28095552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 28095552 is about 5300.5237477064. The cubic root of 28095552 is about 304.0039242337.

The spelling of 28095552 in words is "twenty-eight million, ninety-five thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 71 72 96 108 142 144 192 213 216 229 284 288 426 432 458 568 576 639 687 852 864 916 1136 1278 1374 1704 1728 1832 1917 2061 2272 2556 2748 3408 3664 3834 4122 4544 5112 5496 6183 6816 7328 7668 8244 10224 10992 12366 13632 14656 15336 16259 16488 20448 21984 24732 30672 32518 32976 40896 43968 48777 49464 61344 65036 65952 97554 98928 122688 130072 131904 146331 195108 197856 260144 292662 390216 395712 438993 520288 585324 780432 877986 1040576 1170648 1560864 1755972 2341296 3121728 3511944 4682592 7023888 9365184 14047776 28095552