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18676361 = 114141411
BaseRepresentation
bin100011100111…
…1101010001001
31022010212011002
41013033222021
514240120421
61504144345
7314514014
oct107175211
938125132
1018676361
11a5a6910
1263080b5
133b3bb02
1426a237b
15198db0b
hex11cfa89

18676361 has 8 divisors (see below), whose sum is σ = 20871648. Its totient is φ = 16564000.

The previous prime is 18676351. The next prime is 18676369. The reversal of 18676361 is 16367681.

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

It is not a de Polignac number, because 18676361 - 210 = 18675337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18676369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20255 + ... + 21156.

It is an arithmetic number, because the mean of its divisors is an integer number (2608956).

Almost surely, 218676361 is an apocalyptic number.

18676361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18676361 is a deficient number, since it is larger than the sum of its proper divisors (2195287).

18676361 is a wasteful number, since it uses less digits than its factorization.

18676361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41463.

The product of its digits is 36288, while the sum is 38.

The square root of 18676361 is about 4321.6155543963. The cubic root of 18676361 is about 265.3163943730.

It can be divided in two parts, 1867 and 6361, that added together give a palindrome (8228).

The spelling of 18676361 in words is "eighteen million, six hundred seventy-six thousand, three hundred sixty-one".

Divisors: 1 11 41 451 41411 455521 1697851 18676361