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1028509304796 = 223279361641809
BaseRepresentation
bin11101111011101111110…
…11101000011111011100
310122022202120201011110200
432331313323220133130
5113322341340223141
62104253551503500
7134210263562511
oct16756773503734
93568676634420
101028509304796
11367208764616
121473b9827b90
1375cac87896c
1437acc8d1308
151bb49582ab6
hexef77ee87dc

1028509304796 has 36 divisors (see below), whose sum is σ = 2632752376800. Its totient is φ = 338496732288.

The previous prime is 1028509304791. The next prime is 1028509304833. The reversal of 1028509304796 is 6974039058201.

1028509304796 is a `hidden beast` number, since 1 + 0 + 2 + 8 + 509 + 3 + 0 + 47 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028509304791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180818061 + ... + 180823748.

It is a 1-persistent number, because it is pandigital, but 2⋅1028509304796 = 2057018609592 is not.

Almost surely, 21028509304796 is an apocalyptic number.

It is an amenable number.

1028509304796 is an abundant number, since it is smaller than the sum of its proper divisors (1604243072004).

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

1028509304796 is a wasteful number, since it uses less digits than its factorization.

1028509304796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361641898 (or 361641893 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 1028509304796 in words is "one trillion, twenty-eight billion, five hundred nine million, three hundred four thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 79 158 237 316 474 711 948 1422 2844 361641809 723283618 1084925427 1446567236 2169850854 3254776281 4339701708 6509552562 13019105124 28569702911 57139405822 85709108733 114278811644 171418217466 257127326199 342836434932 514254652398 1028509304796