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1029274475889 = 31146766788299
BaseRepresentation
bin11101111101001011000…
…10100001110101110001
310122101201220111212212210
432332211202201311301
5113330423231212024
62104501524042333
7134235244456152
oct16764542416561
93571656455783
101029274475889
11367570676a20
12147591b333a9
13760a225591a
1437b62391929
151bb9182a129
hexefa58a1d71

1029274475889 has 16 divisors (see below), whose sum is σ = 1500332371200. Its totient is φ = 622466937360.

The previous prime is 1029274475771. The next prime is 1029274475897. The reversal of 1029274475889 is 9885744729201.

It is not a de Polignac number, because 1029274475889 - 28 = 1029274475633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1029274475899) 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, 33378739 + ... + 33409560.

It is an arithmetic number, because the mean of its divisors is an integer number (93770773200).

Almost surely, 21029274475889 is an apocalyptic number.

It is an amenable number.

1029274475889 is a deficient number, since it is larger than the sum of its proper divisors (471057895311).

1029274475889 is a wasteful number, since it uses less digits than its factorization.

1029274475889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66788780.

The product of its (nonzero) digits is 81285120, while the sum is 66.

The spelling of 1029274475889 in words is "one trillion, twenty-nine billion, two hundred seventy-four million, four hundred seventy-five thousand, eight hundred eighty-nine".

Divisors: 1 3 11 33 467 1401 5137 15411 66788299 200364897 734671289 2204013867 31190135633 93570406899 343091491963 1029274475889