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28468160 = 265771179
BaseRepresentation
bin110110010011…
…0001111000000
31222120022222022
41230212033000
524241440120
62454101012
7463655360
oct154461700
958508868
1028468160
1115084606
12964a768
135b89986
143ad09a0
152775025
hex1b263c0

28468160 has 112 divisors (see below), whose sum is σ = 79004160. Its totient is φ = 9569280.

The previous prime is 28468159. The next prime is 28468171. The reversal of 28468160 is 6186482.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×284681602 = 1620872267571200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 28468160.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 158951 + ... + 159129.

Almost surely, 228468160 is an apocalyptic number.

28468160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28468160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39502080).

28468160 is an abundant number, since it is smaller than the sum of its proper divisors (50536000).

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

28468160 is a wasteful number, since it uses less digits than its factorization.

28468160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28468160 is about 5335.5562034337. The cubic root of 28468160 is about 305.3419438255.

The spelling of 28468160 in words is "twenty-eight million, four hundred sixty-eight thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 71 80 112 140 142 160 179 224 280 284 320 355 358 448 497 560 568 710 716 895 994 1120 1136 1253 1420 1432 1790 1988 2240 2272 2485 2506 2840 2864 3580 3976 4544 4970 5012 5680 5728 6265 7160 7952 9940 10024 11360 11456 12530 12709 14320 15904 19880 20048 22720 25060 25418 28640 31808 39760 40096 50120 50836 57280 63545 79520 80192 88963 100240 101672 127090 159040 177926 200480 203344 254180 355852 400960 406688 444815 508360 711704 813376 889630 1016720 1423408 1779260 2033440 2846816 3558520 4066880 5693632 7117040 14234080 28468160