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18075005 = 513487571
BaseRepresentation
bin100010011110…
…0110101111101
31021000022020122
41010330311331
514111400010
61443224325
7306430544
oct104746575
937008218
1018075005
11a226023
1260780a5
13398b190
14258715b
1518c0855
hex113cd7d

18075005 has 16 divisors (see below), whose sum is σ = 23447424. Its totient is φ = 13296960.

The previous prime is 18074999. The next prime is 18075011. The reversal of 18075005 is 50057081.

It is an interprime number because it is at equal distance from previous prime (18074999) and next prime (18075011).

It is not a de Polignac number, because 18075005 - 24 = 18074989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31370 + ... + 31940.

It is an arithmetic number, because the mean of its divisors is an integer number (1465464).

Almost surely, 218075005 is an apocalyptic number.

It is an amenable number.

18075005 is a deficient number, since it is larger than the sum of its proper divisors (5372419).

18075005 is a wasteful number, since it uses less digits than its factorization.

18075005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 18075005 is about 4251.4709219281. The cubic root of 18075005 is about 262.4376511029.

The spelling of 18075005 in words is "eighteen million, seventy-five thousand, five".

Divisors: 1 5 13 65 487 571 2435 2855 6331 7423 31655 37115 278077 1390385 3615001 18075005