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18122095 = 522316253
BaseRepresentation
bin100010100100…
…0010101101111
31021002200211201
41011020111233
514114401340
61444230331
7310015045
oct105102557
937080751
1018122095
11a258442
12609b3a7
1339a6744
14259a395
1518ce79a
hex114856f

18122095 has 8 divisors (see below), whose sum is σ = 21845376. Its totient is φ = 14431776.

The previous prime is 18122087. The next prime is 18122099. The reversal of 18122095 is 59022181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18122095 - 23 = 18122087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18122099) 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, 7012 + ... + 9241.

It is an arithmetic number, because the mean of its divisors is an integer number (2730672).

Almost surely, 218122095 is an apocalyptic number.

18122095 is a deficient number, since it is larger than the sum of its proper divisors (3723281).

18122095 is a wasteful number, since it uses less digits than its factorization.

18122095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16481.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 18122095 is about 4257.0054028624. The cubic root of 18122095 is about 262.6653591527.

The spelling of 18122095 in words is "eighteen million, one hundred twenty-two thousand, ninety-five".

Divisors: 1 5 223 1115 16253 81265 3624419 18122095