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18050208 = 2531117093
BaseRepresentation
bin100010011011…
…0110010100000
31020222001020020
41010312302200
514110101313
61442513440
7306265341
oct104666240
936861206
1018050208
11a209430
126065880
13397cac7
14257c0c8
1518b8323
hex1136ca0

18050208 has 48 divisors (see below), whose sum is σ = 51692256. Its totient is φ = 5469440.

The previous prime is 18050203. The next prime is 18050233. The reversal of 18050208 is 80205081.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (18050203) 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, 7491 + ... + 9602.

It is an arithmetic number, because the mean of its divisors is an integer number (1076922).

Almost surely, 218050208 is an apocalyptic number.

It is an amenable number.

18050208 is an abundant number, since it is smaller than the sum of its proper divisors (33642048).

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

18050208 is a wasteful number, since it uses less digits than its factorization.

18050208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17117 (or 17109 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 18050208 is about 4248.5536362390. The cubic root of 18050208 is about 262.3175839227.

Adding to 18050208 its reverse (80205081), we get a palindrome (98255289).

The spelling of 18050208 in words is "eighteen million, fifty thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 17093 34186 51279 68372 102558 136744 188023 205116 273488 376046 410232 546976 564069 752092 820464 1128138 1504184 1640928 2256276 3008368 4512552 6016736 9025104 18050208