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1028041819429 = 1116192110189
BaseRepresentation
bin11101111010111000001…
…00010100010100100101
310122021120000001110002211
432331130010110110211
5113320412201210204
62104135332003421
7134162556166432
oct16753404242445
93567500043084
101028041819429
11366a98895979
121472a9160571
1375c36a692c1
1437a867a0b89
151bb1d4dd804
hexef5c114525

1028041819429 has 4 divisors (see below), whose sum is σ = 1028133940780. Its totient is φ = 1027949698080.

The previous prime is 1028041819393. The next prime is 1028041819489. The reversal of 1028041819429 is 9249181408201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 470664602500 + 557377216929 = 686050^2 + 746577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028041819429 - 211 = 1028041817381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028041819489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46043934 + ... + 46066255.

It is an arithmetic number, because the mean of its divisors is an integer number (257033485195).

Almost surely, 21028041819429 is an apocalyptic number.

It is an amenable number.

1028041819429 is a deficient number, since it is larger than the sum of its proper divisors (92121351).

1028041819429 is an equidigital number, since it uses as much as digits as its factorization.

1028041819429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92121350.

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

The spelling of 1028041819429 in words is "one trillion, twenty-eight billion, forty-one million, eight hundred nineteen thousand, four hundred twenty-nine".

Divisors: 1 11161 92110189 1028041819429