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29686085 = 5111341519
BaseRepresentation
bin111000100111…
…1100101000101
32001212012122122
41301033211011
530044423320
62540135325
7510220232
oct161174505
961765578
1029686085
1115836660
129b37545
1361c5140
143d2a789
152915d25
hex1c4f945

29686085 has 16 divisors (see below), whose sum is σ = 41852160. Its totient is φ = 19928640.

The previous prime is 29686081. The next prime is 29686103. The reversal of 29686085 is 58068692.

It is a happy number.

It is not a de Polignac number, because 29686085 - 22 = 29686081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29686081) 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 15 ways as a sum of consecutive naturals, for example, 20045 + ... + 21474.

It is an arithmetic number, because the mean of its divisors is an integer number (2615760).

Almost surely, 229686085 is an apocalyptic number.

It is an amenable number.

29686085 is a deficient number, since it is larger than the sum of its proper divisors (12166075).

29686085 is a wasteful number, since it uses less digits than its factorization.

29686085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41548.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 29686085 is about 5448.4938285732. The cubic root of 29686085 is about 309.6356628467.

The spelling of 29686085 in words is "twenty-nine million, six hundred eighty-six thousand, eighty-five".

Divisors: 1 5 11 13 55 65 143 715 41519 207595 456709 539747 2283545 2698735 5937217 29686085