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28368600 = 23352133637
BaseRepresentation
bin110110000110…
…1111011011000
31222101021101220
41230031323120
524230243400
62452012040
7463062201
oct154157330
958337356
1028368600
1115016827
129601020
135b53570
143aa65a8
1527557a0
hex1b0ded8

28368600 has 96 divisors (see below), whose sum is σ = 94733520. Its totient is φ = 6981120.

The previous prime is 28368559. The next prime is 28368601. The reversal of 28368600 is 686382.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5982 + ... + 9618.

Almost surely, 228368600 is an apocalyptic number.

28368600 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 28368600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47366760).

28368600 is an abundant number, since it is smaller than the sum of its proper divisors (66364920).

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

28368600 is a wasteful number, since it uses less digits than its factorization.

28368600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28368600 is about 5326.2181705221. The cubic root of 28368600 is about 304.9855766717.

The spelling of 28368600 in words is "twenty-eight million, three hundred sixty-eight thousand, six hundred".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 25 26 30 39 40 50 52 60 65 75 78 100 104 120 130 150 156 195 200 260 300 312 325 390 520 600 650 780 975 1300 1560 1950 2600 3637 3900 7274 7800 10911 14548 18185 21822 29096 36370 43644 47281 54555 72740 87288 90925 94562 109110 141843 145480 181850 189124 218220 236405 272775 283686 363700 378248 436440 472810 545550 567372 709215 727400 945620 1091100 1134744 1182025 1418430 1891240 2182200 2364050 2836860 3546075 4728100 5673720 7092150 9456200 14184300 28368600