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18764082 = 233438081
BaseRepresentation
bin100011110010…
…1000100110010
31022022022111000
41013211010302
514300422312
61510102430
7315330531
oct107450462
938268430
1018764082
11a656807
12634aa16
133b6ca0c
1426c6318
1519a9adc
hex11e5132

18764082 has 32 divisors (see below), whose sum is σ = 42672960. Its totient is φ = 6108480.

The previous prime is 18764051. The next prime is 18764111. The reversal of 18764082 is 28046781.

18764082 is a `hidden beast` number, since 1 + 8 + 7 + 640 + 8 + 2 = 666.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1719 + ... + 6362.

It is an arithmetic number, because the mean of its divisors is an integer number (1333530).

Almost surely, 218764082 is an apocalyptic number.

18764082 is an abundant number, since it is smaller than the sum of its proper divisors (23908878).

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

18764082 is a wasteful number, since it uses less digits than its factorization.

18764082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8135 (or 8129 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 18764082 is about 4331.7527630279. The cubic root of 18764082 is about 265.7311339101.

The spelling of 18764082 in words is "eighteen million, seven hundred sixty-four thousand, eighty-two".

Divisors: 1 2 3 6 9 18 27 43 54 86 129 258 387 774 1161 2322 8081 16162 24243 48486 72729 145458 218187 347483 436374 694966 1042449 2084898 3127347 6254694 9382041 18764082