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29086385 = 527721001
BaseRepresentation
bin110111011110…
…1001010110001
32000201202000112
41232331022301
524421231020
62515231105
7502141646
oct156751261
960652015
1029086385
1115467039
1298a8495
1360451a3
143c11dcd
1528482c5
hex1bbd2b1

29086385 has 8 divisors (see below), whose sum is σ = 35031336. Its totient is φ = 23184000.

The previous prime is 29086381. The next prime is 29086399. The reversal of 29086385 is 58368092.

It can be written as a sum of positive squares in 4 ways, for example, as 1936 + 29084449 = 44^2 + 5393^2 .

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

It is not a de Polignac number, because 29086385 - 22 = 29086381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29086381) 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, 9116 + ... + 11885.

It is an arithmetic number, because the mean of its divisors is an integer number (4378917).

Almost surely, 229086385 is an apocalyptic number.

It is an amenable number.

29086385 is a deficient number, since it is larger than the sum of its proper divisors (5944951).

29086385 is a wasteful number, since it uses less digits than its factorization.

29086385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21283.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 29086385 is about 5393.1794889471. The cubic root of 29086385 is about 307.5364400378.

The spelling of 29086385 in words is "twenty-nine million, eighty-six thousand, three hundred eighty-five".

Divisors: 1 5 277 1385 21001 105005 5817277 29086385