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1028509304713 = 11307954495573
BaseRepresentation
bin11101111011101111110…
…11101000011110001001
310122022202120201011100121
432331313323220132021
5113322341340222323
62104253551503241
7134210263562332
oct16756773503611
93568676634317
101028509304713
11367208764550
121473b9827b21
1375cac878907
1437acc8d1289
151bb49582a5d
hexef77ee8789

1028509304713 has 16 divisors (see below), whose sum is σ = 1122781968000. Its totient is φ = 934365559680.

The previous prime is 1028509304707. The next prime is 1028509304741. The reversal of 1028509304713 is 3174039058201.

It is a cyclic number.

It is not a de Polignac number, because 1028509304713 - 25 = 1028509304681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1028509304713.

It is not an unprimeable number, because it can be changed into a prime (1028509304413) 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, 184549395 + ... + 184554967.

It is an arithmetic number, because the mean of its divisors is an integer number (70173873000).

Almost surely, 21028509304713 is an apocalyptic number.

It is an amenable number.

1028509304713 is a deficient number, since it is larger than the sum of its proper divisors (94272663287).

1028509304713 is a wasteful number, since it uses less digits than its factorization.

1028509304713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14112.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 1028509304713 in words is "one trillion, twenty-eight billion, five hundred nine million, three hundred four thousand, seven hundred thirteen".

Divisors: 1 11 3079 5449 5573 33869 59939 61303 16777471 17159267 30367277 184552181 188751937 334040047 93500845883 1028509304713