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18859214 = 2112413557
BaseRepresentation
bin100011111110…
…0010011001110
31022111010222102
41013330103032
514311443324
61512115102
7316205063
oct107742316
938433872
1018859214
11a711230
126395a92
133ba40ca
14270cc6a
1519c7dae
hex11fc4ce

18859214 has 16 divisors (see below), whose sum is σ = 30997296. Its totient is φ = 8534400.

The previous prime is 18859213. The next prime is 18859231. The reversal of 18859214 is 41295881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18859213) 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, 3524 + ... + 7080.

It is an arithmetic number, because the mean of its divisors is an integer number (1937331).

Almost surely, 218859214 is an apocalyptic number.

18859214 is a deficient number, since it is larger than the sum of its proper divisors (12138082).

18859214 is a wasteful number, since it uses less digits than its factorization.

18859214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811.

The product of its digits is 23040, while the sum is 38.

The square root of 18859214 is about 4342.7196547786. The cubic root of 18859214 is about 266.1794537834.

The spelling of 18859214 in words is "eighteen million, eight hundred fifty-nine thousand, two hundred fourteen".

Divisors: 1 2 11 22 241 482 2651 3557 5302 7114 39127 78254 857237 1714474 9429607 18859214