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18682829 = 114736137
BaseRepresentation
bin100011101000…
…1001111001101
31022011012000122
41013101033031
514240322304
61504234325
7314541614
oct107211715
938135018
1018682829
11a600760
12630b9a5
133b41a39
1426a487b
1519909be
hex11d13cd

18682829 has 8 divisors (see below), whose sum is σ = 20815488. Its totient is φ = 16622560.

The previous prime is 18682799. The next prime is 18682849. The reversal of 18682829 is 92828681.

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 18682829 - 224 = 1905613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18682829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18682849) 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, 17552 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (2601936).

Almost surely, 218682829 is an apocalyptic number.

It is an amenable number.

18682829 is a deficient number, since it is larger than the sum of its proper divisors (2132659).

18682829 is a wasteful number, since it uses less digits than its factorization.

18682829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36195.

The product of its digits is 110592, while the sum is 44.

The square root of 18682829 is about 4322.3638208739. The cubic root of 18682829 is about 265.3470189751.

The spelling of 18682829 in words is "eighteen million, six hundred eighty-two thousand, eight hundred twenty-nine".

Divisors: 1 11 47 517 36137 397507 1698439 18682829