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29290471 = 74184353
BaseRepresentation
bin110111110111…
…0111111100111
32001010002222021
41233232333213
524444243341
62523444011
7503651650
oct157567747
961102867
1029290471
1115596401
129986607
1360b7052
143c66527
1528889d1
hex1beefe7

29290471 has 4 divisors (see below), whose sum is σ = 33474832. Its totient is φ = 25106112.

The previous prime is 29290453. The next prime is 29290487. The reversal of 29290471 is 17409292.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 29290471 - 217 = 29159399 is a prime.

It is a super-3 number, since 3×292904713 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29290171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2092170 + ... + 2092183.

It is an arithmetic number, because the mean of its divisors is an integer number (8368708).

Almost surely, 229290471 is an apocalyptic number.

29290471 is a deficient number, since it is larger than the sum of its proper divisors (4184361).

29290471 is an equidigital number, since it uses as much as digits as its factorization.

29290471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184360.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 29290471 is about 5412.0671651412. The cubic root of 29290471 is about 308.2540456141.

The spelling of 29290471 in words is "twenty-nine million, two hundred ninety thousand, four hundred seventy-one".

Divisors: 1 7 4184353 29290471