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18300329 = 149263467
BaseRepresentation
bin100010111001…
…1110110101001
31021102202022222
41011303312221
514141102304
61452123425
7311356505
oct105636651
937382288
1018300329
11a36a343
126166575
133a398c8
142605305
1519174be
hex1173da9

18300329 has 8 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 18069616.

The previous prime is 18300301. The next prime is 18300353. The reversal of 18300329 is 92300381.

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 18300329 - 216 = 18234793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18300298 and 18300307.

It is not an unprimeable number, because it can be changed into a prime (18300379) 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, 38954 + ... + 39420.

It is an arithmetic number, because the mean of its divisors is an integer number (2316600).

Almost surely, 218300329 is an apocalyptic number.

It is an amenable number.

18300329 is a deficient number, since it is larger than the sum of its proper divisors (232471).

18300329 is a wasteful number, since it uses less digits than its factorization.

18300329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 18300329 is about 4277.8883809655. Note that the first 3 decimals coincide. The cubic root of 18300329 is about 263.5236714305.

The spelling of 18300329 in words is "eighteen million, three hundred thousand, three hundred twenty-nine".

Divisors: 1 149 263 467 39187 69583 122821 18300329