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29047389 = 371383209
BaseRepresentation
bin110111011001…
…1101001011101
32000122202112020
41232303221131
524414004024
62514330353
7501620160
oct156635135
960582466
1029047389
111543a808
1298899b9
136030507
143c01ad7
15283b979
hex1bb3a5d

29047389 has 8 divisors (see below), whose sum is σ = 44262720. Its totient is φ = 16598496.

The previous prime is 29047379. The next prime is 29047391. The reversal of 29047389 is 98374092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29047389 - 216 = 28981853 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 29047389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29047309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691584 + ... + 691625.

It is an arithmetic number, because the mean of its divisors is an integer number (5532840).

Almost surely, 229047389 is an apocalyptic number.

It is an amenable number.

29047389 is a deficient number, since it is larger than the sum of its proper divisors (15215331).

29047389 is a wasteful number, since it uses less digits than its factorization.

29047389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383219.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 29047389 is about 5389.5629692954. The cubic root of 29047389 is about 307.3989409464.

The spelling of 29047389 in words is "twenty-nine million, forty-seven thousand, three hundred eighty-nine".

Divisors: 1 3 7 21 1383209 4149627 9682463 29047389