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18514485 = 32511113331
BaseRepresentation
bin100011010100…
…0001000110101
31021211122002200
41012220020311
514214430420
61500455113
7313241043
oct106501065
937748080
1018514485
11a4a6230
12624a499
133ab3222
14265d393
15195ab90
hex11a8235

18514485 has 48 divisors (see below), whose sum is σ = 35425728. Its totient is φ = 8870400.

The previous prime is 18514481. The next prime is 18514501. The reversal of 18514485 is 58441581.

It is not a de Polignac number, because 18514485 - 22 = 18514481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55770 + ... + 56100.

It is an arithmetic number, because the mean of its divisors is an integer number (738036).

Almost surely, 218514485 is an apocalyptic number.

18514485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18514485 is a deficient number, since it is larger than the sum of its proper divisors (16911243).

18514485 is a wasteful number, since it uses less digits than its factorization.

18514485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 463 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 18514485 is about 4302.8461510958. The cubic root of 18514485 is about 264.5476321653.

It can be divided in two parts, 1851 and 4485, that added together give a palindrome (6336).

The spelling of 18514485 in words is "eighteen million, five hundred fourteen thousand, four hundred eighty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 113 165 331 339 495 565 993 1017 1243 1655 1695 2979 3641 3729 4965 5085 6215 10923 11187 14895 18205 18645 32769 37403 54615 55935 112209 163845 187015 336627 411433 561045 1234299 1683135 2057165 3702897 6171495 18514485