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18914063 = 719142211
BaseRepresentation
bin100100000100…
…1101100001111
31022120221012212
41020021230033
514320222223
61513221035
7316524020
oct110115417
938527185
1018914063
11a749463
12640177b
133bc306c
142724c47
1519d9278
hex1209b0f

18914063 has 8 divisors (see below), whose sum is σ = 22753920. Its totient is φ = 15358680.

The previous prime is 18914059. The next prime is 18914099. The reversal of 18914063 is 36041981.

It is a happy number.

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 18914063 - 22 = 18914059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18914563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70973 + ... + 71238.

It is an arithmetic number, because the mean of its divisors is an integer number (2844240).

Almost surely, 218914063 is an apocalyptic number.

18914063 is a deficient number, since it is larger than the sum of its proper divisors (3839857).

18914063 is a wasteful number, since it uses less digits than its factorization.

18914063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142237.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 18914063 is about 4349.0301217628. The cubic root of 18914063 is about 266.4372507782.

The spelling of 18914063 in words is "eighteen million, nine hundred fourteen thousand, sixty-three".

Divisors: 1 7 19 133 142211 995477 2702009 18914063