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2028860764 = 2272915116547
BaseRepresentation
bin111100011101101…
…1111010101011100
312020101122210202021
41320323133111130
513123342021024
6533153305524
7101164013650
oct17073372534
95211583667
102028860764
1195126a137
124875652a4
13264440938
1415364ca60
15bd1b3de4
hex78edf55c

2028860764 has 48 divisors (see below), whose sum is σ = 4225697280. Its totient is φ = 833918400.

The previous prime is 2028860761. The next prime is 2028860791. The reversal of 2028860764 is 4670688202.

It is a self number, because there is not a number n which added to its sum of digits gives 2028860764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028860761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114339 + ... + 130885.

It is an arithmetic number, because the mean of its divisors is an integer number (88035360).

Almost surely, 22028860764 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 2028860764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112848640).

2028860764 is an abundant number, since it is smaller than the sum of its proper divisors (2196836516).

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

2028860764 is a wasteful number, since it uses less digits than its factorization.

2028860764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16738 (or 16736 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 2028860764 is about 45042.8769507455. The cubic root of 2028860764 is about 1265.9525108490.

The spelling of 2028860764 in words is "two billion, twenty-eight million, eight hundred sixty thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 14 28 29 58 116 151 203 302 406 604 812 1057 2114 4228 4379 8758 16547 17516 30653 33094 61306 66188 115829 122612 231658 463316 479863 959726 1919452 2498597 3359041 4997194 6718082 9994388 13436164 17490179 34980358 69960716 72459313 144918626 289837252 507215191 1014430382 2028860764