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28883034 = 2331773431
BaseRepresentation
bin110111000101…
…1100001011010
32000100102002000
41232023201122
524343224114
62511021430
7500334045
oct156134132
960312060
1028883034
1115338284
12980a876
135ca376b
143b9bc5c
152807e09
hex1b8b85a

28883034 has 64 divisors (see below), whose sum is σ = 69050880. Its totient is φ = 8916480.

The previous prime is 28883027. The next prime is 28883047. The reversal of 28883034 is 43038882.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28883034.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66799 + ... + 67229.

It is an arithmetic number, because the mean of its divisors is an integer number (1078920).

Almost surely, 228883034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28883034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34525440).

28883034 is an abundant number, since it is smaller than the sum of its proper divisors (40167846).

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

28883034 is a wasteful number, since it uses less digits than its factorization.

28883034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28883034 is about 5374.2938140746. The cubic root of 28883034 is about 306.8180724220.

The spelling of 28883034 in words is "twenty-eight million, eight hundred eighty-three thousand, thirty-four".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 73 102 146 153 219 306 431 438 459 657 862 918 1241 1293 1314 1971 2482 2586 3723 3879 3942 7327 7446 7758 11169 11637 14654 21981 22338 23274 31463 33507 43962 62926 65943 67014 94389 131886 188778 197829 283167 395658 534871 566334 849501 1069742 1604613 1699002 3209226 4813839 9627678 14441517 28883034