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28054000 = 245313283
BaseRepresentation
bin110101100000…
…1000111110000
31221210021212001
41223001013300
524140212000
62441143344
7460312042
oct153010760
957707761
1028054000
1114921427
12948ab54
135a73300
143a23a92
1526e246a
hex1ac11f0

28054000 has 120 divisors (see below), whose sum is σ = 74338992. Its totient is φ = 10233600.

The previous prime is 28053983. The next prime is 28054003. The reversal of 28054000 is 45082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28054003) 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 23 ways as a sum of consecutive naturals, for example, 337959 + ... + 338041.

Almost surely, 228054000 is an apocalyptic number.

28054000 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 28054000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37169496).

28054000 is an abundant number, since it is smaller than the sum of its proper divisors (46284992).

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

28054000 is a wasteful number, since it uses less digits than its factorization.

28054000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 28054000 is about 5296.6026847405. The cubic root of 28054000 is about 303.8539811212.

Adding to 28054000 its reverse (45082), we get a palindrome (28099082).

The spelling of 28054000 in words is "twenty-eight million, fifty-four thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 83 100 104 125 130 166 169 200 208 250 260 325 332 338 400 415 500 520 650 664 676 830 845 1000 1040 1079 1300 1328 1352 1625 1660 1690 2000 2075 2158 2600 2704 3250 3320 3380 4150 4225 4316 5200 5395 6500 6640 6760 8300 8450 8632 10375 10790 13000 13520 14027 16600 16900 17264 20750 21125 21580 26000 26975 28054 33200 33800 41500 42250 43160 53950 56108 67600 70135 83000 84500 86320 107900 112216 134875 140270 166000 169000 215800 224432 269750 280540 338000 350675 431600 539500 561080 701350 1079000 1122160 1402700 1753375 2158000 2805400 3506750 5610800 7013500 14027000 28054000