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29518285 = 529320149
BaseRepresentation
bin111000010011…
…0100111001101
32001112200110211
41300212213031
530024041120
62532402421
7505621066
oct160464715
961480424
1029518285
1115731585
129a76411
136166954
143cc556d
1528d125a
hex1c269cd

29518285 has 8 divisors (see below), whose sum is σ = 35544600. Its totient is φ = 23532864.

The previous prime is 29518261. The next prime is 29518289. The reversal of 29518285 is 58281592.

It can be written as a sum of positive squares in 4 ways, for example, as 8779369 + 20738916 = 2963^2 + 4554^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 29518285 - 211 = 29516237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29518289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8610 + ... + 11539.

It is an arithmetic number, because the mean of its divisors is an integer number (4443075).

Almost surely, 229518285 is an apocalyptic number.

It is an amenable number.

29518285 is a deficient number, since it is larger than the sum of its proper divisors (6026315).

29518285 is a wasteful number, since it uses less digits than its factorization.

29518285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20447.

The product of its digits is 57600, while the sum is 40.

The square root of 29518285 is about 5433.0732555341. The cubic root of 29518285 is about 309.0511570325.

It can be divided in two parts, 2951 and 8285, that added together give a square (11236 = 1062).

The spelling of 29518285 in words is "twenty-nine million, five hundred eighteen thousand, two hundred eighty-five".

Divisors: 1 5 293 1465 20149 100745 5903657 29518285