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29385505 = 519729833
BaseRepresentation
bin111000000011…
…0001100100001
32001021221100001
41300012030201
530010314010
62525500001
7504526012
oct160061441
961257301
1029385505
1115650846
129a11601
13611b396
143c8d009
1528a6c3a
hex1c06321

29385505 has 8 divisors (see below), whose sum is σ = 35442792. Its totient is φ = 23388288.

The previous prime is 29385443. The next prime is 29385529. The reversal of 29385505 is 50558392.

It can be written as a sum of positive squares in 4 ways, for example, as 9529569 + 19855936 = 3087^2 + 4456^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29385505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13932 + ... + 15901.

It is an arithmetic number, because the mean of its divisors is an integer number (4430349).

Almost surely, 229385505 is an apocalyptic number.

It is an amenable number.

29385505 is a deficient number, since it is larger than the sum of its proper divisors (6057287).

29385505 is a wasteful number, since it uses less digits than its factorization.

29385505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30035.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 29385505 is about 5420.8398795759. The cubic root of 29385505 is about 308.5870662004.

It can be divided in two parts, 29385 and 505, that added together give a triangular number (29890 = T244).

The spelling of 29385505 in words is "twenty-nine million, three hundred eighty-five thousand, five hundred five".

Divisors: 1 5 197 985 29833 149165 5877101 29385505