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28816360 = 23517311367
BaseRepresentation
bin110110111101…
…1001111101000
32000020000121121
41231323033220
524334110420
62505345024
7466635466
oct155731750
960200547
1028816360
11152a2181
129798174
135c7c301
143b81836
1527e32aa
hex1b7b3e8

28816360 has 64 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 10490880.

The previous prime is 28816357. The next prime is 28816373. The reversal of 28816360 is 6361882.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20397 + ... + 21763.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 228816360 is an apocalyptic number.

28816360 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 28816360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35458560).

28816360 is an abundant number, since it is smaller than the sum of its proper divisors (42100760).

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

28816360 is a wasteful number, since it uses less digits than its factorization.

28816360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28816360 is about 5368.0871826005. The cubic root of 28816360 is about 306.5818028148.

The spelling of 28816360 in words is "twenty-eight million, eight hundred sixteen thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 17 20 31 34 40 62 68 85 124 136 155 170 248 310 340 527 620 680 1054 1240 1367 2108 2635 2734 4216 5270 5468 6835 10540 10936 13670 21080 23239 27340 42377 46478 54680 84754 92956 116195 169508 185912 211885 232390 339016 423770 464780 720409 847540 929560 1440818 1695080 2881636 3602045 5763272 7204090 14408180 28816360