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28035450 = 23352191093
BaseRepresentation
bin110101011110…
…0100101111010
31221202100102000
41222330211322
524134113300
62440521430
7460204002
oct152744572
957670360
1028035450
11149094a3
129480276
135a67a31
143a1b002
1526dbc00
hex1abc97a

28035450 has 96 divisors (see below), whose sum is σ = 81393600. Its totient is φ = 7076160.

The previous prime is 28035407. The next prime is 28035457. The reversal of 28035450 is 5453082.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28035457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25104 + ... + 26196.

It is an arithmetic number, because the mean of its divisors is an integer number (847850).

Almost surely, 228035450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28035450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40696800).

28035450 is an abundant number, since it is smaller than the sum of its proper divisors (53358150).

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

28035450 is a wasteful number, since it uses less digits than its factorization.

28035450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 28035450 is about 5294.8512726988. The cubic root of 28035450 is about 303.7869944273.

The spelling of 28035450 in words is "twenty-eight million, thirty-five thousand, four hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 19 25 27 30 38 45 50 54 57 75 90 95 114 135 150 171 190 225 270 285 342 450 475 513 570 675 855 950 1026 1093 1350 1425 1710 2186 2565 2850 3279 4275 5130 5465 6558 8550 9837 10930 12825 16395 19674 20767 25650 27325 29511 32790 41534 49185 54650 59022 62301 81975 98370 103835 124602 147555 163950 186903 207670 245925 295110 311505 373806 491850 519175 560709 623010 737775 934515 1038350 1121418 1475550 1557525 1869030 2803545 3115050 4672575 5607090 9345150 14017725 28035450