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18064064 = 261716603
BaseRepresentation
bin100010011101…
…0001011000000
31020222202020102
41010322023000
514111022224
61443101532
7306353624
oct104721300
936882212
1018064064
11a218887
1260718a8
1339861c5
142583184
1518bc4ae
hex113a2c0

18064064 has 28 divisors (see below), whose sum is σ = 37956744. Its totient is φ = 8500224.

The previous prime is 18064049. The next prime is 18064073. The reversal of 18064064 is 46046081.

18064064 = T94 + T95 + ... + T477.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214 + ... + 9389.

It is an arithmetic number, because the mean of its divisors is an integer number (1355598).

Almost surely, 218064064 is an apocalyptic number.

It is an amenable number.

18064064 is an abundant number, since it is smaller than the sum of its proper divisors (19892680).

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

18064064 is a wasteful number, since it uses less digits than its factorization.

18064064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16632 (or 16622 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 18064064 is about 4250.1839960171. The cubic root of 18064064 is about 262.3846882797.

The spelling of 18064064 in words is "eighteen million, sixty-four thousand, sixty-four".

Divisors: 1 2 4 8 16 17 32 34 64 68 136 272 544 1088 16603 33206 66412 132824 265648 282251 531296 564502 1062592 1129004 2258008 4516016 9032032 18064064