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18348341 = 111668031
BaseRepresentation
bin100010111111…
…1100100110101
31021112012012012
41011333210311
514144121331
61453134005
7311646464
oct105774465
937465165
1018348341
11a3a2420
12618a305
133a5570b
1426189db
15192682b
hex117f935

18348341 has 4 divisors (see below), whose sum is σ = 20016384. Its totient is φ = 16680300.

The previous prime is 18348301. The next prime is 18348347. The reversal of 18348341 is 14384381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14384381 = 111307671.

It is a cyclic number.

It is not a de Polignac number, because 18348341 - 222 = 14154037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18348298 and 18348307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18348347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834005 + ... + 834026.

It is an arithmetic number, because the mean of its divisors is an integer number (5004096).

Almost surely, 218348341 is an apocalyptic number.

18348341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18348341 is a deficient number, since it is larger than the sum of its proper divisors (1668043).

18348341 is a wasteful number, since it uses less digits than its factorization.

18348341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668042.

The product of its digits is 9216, while the sum is 32.

The square root of 18348341 is about 4283.4963522805. The cubic root of 18348341 is about 263.7539268524.

The spelling of 18348341 in words is "eighteen million, three hundred forty-eight thousand, three hundred forty-one".

Divisors: 1 11 1668031 18348341