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18048107 = 711317561
BaseRepresentation
bin100010011011…
…0010001101011
31020221221100102
41010312101223
514110014412
61442500015
7306256250
oct104662153
936857312
1018048107
11a2078a0
12606460b
13397bb6c
14257b427
1518b78c2
hex113646b

18048107 has 16 divisors (see below), whose sum is σ = 23230464. Its totient is φ = 13608000.

The previous prime is 18048083. The next prime is 18048113. The reversal of 18048107 is 70184081.

It is not a de Polignac number, because 18048107 - 28 = 18047851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18048107.

It is not an unprimeable number, because it can be changed into a prime (18048137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1394 + ... + 6167.

It is an arithmetic number, because the mean of its divisors is an integer number (1451904).

Almost surely, 218048107 is an apocalyptic number.

18048107 is a deficient number, since it is larger than the sum of its proper divisors (5182357).

18048107 is a wasteful number, since it uses less digits than its factorization.

18048107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7610.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 18048107 is about 4248.3063684250. The cubic root of 18048107 is about 262.3074058197.

The spelling of 18048107 in words is "eighteen million, forty-eight thousand, one hundred seven".

Divisors: 1 7 11 31 77 217 341 2387 7561 52927 83171 234391 582197 1640737 2578301 18048107