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1028998084 = 224323732
BaseRepresentation
bin111101010101010…
…100001111000100
32122201020112000011
4331111110033010
54101410414314
6250035000004
734333224262
oct7525241704
92581215004
101028998084
1148892a544
12248739004
1313525110a
149a939432
156050d4c4
hex3d5543c4

1028998084 has 27 divisors (see below), whose sum is σ = 1848554253. Its totient is φ = 501186672.

The previous prime is 1028998079. The next prime is 1028998093. The reversal of 1028998084 is 4808998201.

The square root of 1028998084 is 32078.

It is a perfect power (a square), and thus also a powerful number.

1028998084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 559322500 + 469675584 = 23650^2 + 21672^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2758522 + ... + 2758894.

Almost surely, 21028998084 is an apocalyptic number.

1028998084 is the 32078-th square number.

It is an amenable number.

1028998084 is a deficient number, since it is larger than the sum of its proper divisors (819556169).

1028998084 is an frugal number, since it uses more digits than its factorization.

1028998084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The cubic root of 1028998084 is about 1009.5740726048.

Multiplying 1028998084 by its sum of digits (49), we get a square (50420906116 = 2245462).

Multiplying 1028998084 by its product of nonzero digits (331776), we get a square (341396868317184 = 184769282).

The spelling of 1028998084 in words is "one billion, twenty-eight million, nine hundred ninety-eight thousand, eighty-four".

Divisors: 1 2 4 43 86 172 373 746 1492 1849 3698 7396 16039 32078 64156 139129 278258 556516 689677 1379354 2758708 5982547 11965094 23930188 257249521 514499042 1028998084