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850028512 = 25291038893
BaseRepresentation
bin110010101010100…
…110011111100000
32012020110220220111
4302222212133200
53220101403022
6220203021104
730031060144
oct6252463740
92166426814
10850028512
113a6901003
121b880a794
1310714b268
1480c6d224
154e95a477
hex32aa67e0

850028512 has 48 divisors (see below), whose sum is σ = 1748204640. Its totient is φ = 406328832.

The previous prime is 850028489. The next prime is 850028519. The reversal of 850028512 is 215820058.

850028512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850028519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91138 + ... + 100030.

It is an arithmetic number, because the mean of its divisors is an integer number (36420930).

Almost surely, 2850028512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850028512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874102320).

850028512 is an abundant number, since it is smaller than the sum of its proper divisors (898176128).

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

850028512 is a wasteful number, since it uses less digits than its factorization.

850028512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9035 (or 9027 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 850028512 is about 29155.2484468920. The cubic root of 850028512 is about 947.2788286408.

The spelling of 850028512 in words is "eight hundred fifty million, twenty-eight thousand, five hundred twelve".

Divisors: 1 2 4 8 16 29 32 58 103 116 206 232 412 464 824 928 1648 2987 3296 5974 8893 11948 17786 23896 35572 47792 71144 95584 142288 257897 284576 515794 915979 1031588 1831958 2063176 3663916 4126352 7327832 8252704 14655664 26563391 29311328 53126782 106253564 212507128 425014256 850028512