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18299941 = 113744963
BaseRepresentation
bin100010111001…
…1110000100101
31021102201210121
41011303300211
514141044231
61452121541
7311355412
oct105636045
937381717
1018299941
11a36a020
1261662b1
133a3968a
142605109
151917311
hex1173c25

18299941 has 8 divisors (see below), whose sum is σ = 20503584. Its totient is φ = 16186320.

The previous prime is 18299903. The next prime is 18299947. The reversal of 18299941 is 14999281.

It is a happy number.

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 18299941 - 215 = 18267173 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 (18299947) 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, 22075 + ... + 22888.

It is an arithmetic number, because the mean of its divisors is an integer number (2562948).

Almost surely, 218299941 is an apocalyptic number.

18299941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18299941 is a deficient number, since it is larger than the sum of its proper divisors (2203643).

18299941 is a wasteful number, since it uses less digits than its factorization.

18299941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45011.

The product of its digits is 46656, while the sum is 43.

The square root of 18299941 is about 4277.8430312483. The cubic root of 18299941 is about 263.5218090249.

The spelling of 18299941 in words is "eighteen million, two hundred ninety-nine thousand, nine hundred forty-one".

Divisors: 1 11 37 407 44963 494593 1663631 18299941