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18611068 = 2271016581
BaseRepresentation
bin100011011111…
…1101101111100
31022000112120211
41012333231330
514231023233
61502522204
7314122450
oct106775574
938015524
1018611068
11a561853
126296364
133b18188
142686660
1519795cd
hex11bfb7c

18611068 has 24 divisors (see below), whose sum is σ = 37596384. Its totient is φ = 7896000.

The previous prime is 18611029. The next prime is 18611081. The reversal of 18611068 is 86011681.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463 + ... + 6118.

It is an arithmetic number, because the mean of its divisors is an integer number (1566516).

Almost surely, 218611068 is an apocalyptic number.

It is an amenable number.

18611068 is an abundant number, since it is smaller than the sum of its proper divisors (18985316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18611068 is a wasteful number, since it uses less digits than its factorization.

18611068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6693 (or 6691 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 18611068 is about 4314.0547052628. The cubic root of 18611068 is about 265.0068492356.

The spelling of 18611068 in words is "eighteen million, six hundred eleven thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 101 202 404 707 1414 2828 6581 13162 26324 46067 92134 184268 664681 1329362 2658724 4652767 9305534 18611068