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18036029 = 117012339
BaseRepresentation
bin100010011001…
…1010100111101
31020221022210002
41010303110331
514104123104
61442324045
7306206114
oct104632475
936838702
1018036029
11a1a9810
126059625
13397650b
142576c7b
1518b401e
hex113353d

18036029 has 8 divisors (see below), whose sum is σ = 19712160. Its totient is φ = 16366000.

The previous prime is 18036013. The next prime is 18036047. The reversal of 18036029 is 92063081.

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 18036029 - 24 = 18036013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18035992 and 18036010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036229) 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, 6542 + ... + 8880.

It is an arithmetic number, because the mean of its divisors is an integer number (2464020).

Almost surely, 218036029 is an apocalyptic number.

It is an amenable number.

18036029 is a deficient number, since it is larger than the sum of its proper divisors (1676131).

18036029 is a wasteful number, since it uses less digits than its factorization.

18036029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 18036029 is about 4246.8846228736. The cubic root of 18036029 is about 262.2488797218.

The spelling of 18036029 in words is "eighteen million, thirty-six thousand, twenty-nine".

Divisors: 1 11 701 2339 7711 25729 1639639 18036029