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29281076973 = 323253452997
BaseRepresentation
bin11011010001010010…
…011100011011101101
32210120122111211101100
4123101102130123231
5434431423430343
621241311033313
72054420022231
oct332122343355
983518454340
1029281076973
111146644a575
12581220b839
1329b845b865
1415bab865c1
15b659699d3
hex6d149c6ed

29281076973 has 6 divisors (see below), whose sum is σ = 42294888974. Its totient is φ = 19520717976.

The previous prime is 29281076971. The next prime is 29281076977. The reversal of 29281076973 is 37967018292.

It can be written as a sum of positive squares in only one way, i.e., 29281027689 + 49284 = 171117^2 + 222^2 .

It is not a de Polignac number, because 29281076973 - 21 = 29281076971 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 (29281076971) 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 5 ways as a sum of consecutive naturals, for example, 1626726490 + ... + 1626726507.

Almost surely, 229281076973 is an apocalyptic number.

It is an amenable number.

29281076973 is a deficient number, since it is larger than the sum of its proper divisors (13013812001).

29281076973 is a wasteful number, since it uses less digits than its factorization.

29281076973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253453003 (or 3253453000 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 29281076973 in words is "twenty-nine billion, two hundred eighty-one million, seventy-six thousand, nine hundred seventy-three".

Divisors: 1 3 9 3253452997 9760358991 29281076973