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29213450289 = 3220509158269
BaseRepresentation
bin11011001101010000…
…011110000000110001
32210101221021001000100
4123031100132000301
5434312120402124
621230453343013
72052636142002
oct331520360061
983357231010
1029213450289
111143125a651
1257b3637a69
1329a744137a
1415b1bc11a9
15b5ea5c1c9
hex6cd41e031

29213450289 has 12 divisors (see below), whose sum is σ = 42199530100. Its totient is φ = 19474560864.

The previous prime is 29213450243. The next prime is 29213450309. The reversal of 29213450289 is 98205431292.

29213450289 is a `hidden beast` number, since 2 + 9 + 2 + 134 + 502 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9094864689 + 20118585600 = 95367^2 + 141840^2 .

It is not a de Polignac number, because 29213450289 - 28 = 29213450033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29213450089) 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, 105447 + ... + 263715.

Almost surely, 229213450289 is an apocalyptic number.

It is an amenable number.

29213450289 is a deficient number, since it is larger than the sum of its proper divisors (12986079811).

29213450289 is a wasteful number, since it uses less digits than its factorization.

29213450289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178784 (or 178781 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 29213450289 in words is "twenty-nine billion, two hundred thirteen million, four hundred fifty thousand, two hundred eighty-nine".

Divisors: 1 3 9 20509 61527 158269 184581 474807 1424421 3245938921 9737816763 29213450289