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18093301 = 19952279
BaseRepresentation
bin100010100000…
…1010011110101
31021001020100021
41011001103311
514112441201
61443445141
7306535102
oct105012365
937036307
1018093301
11a238846
1260867b1
1339965c5
14258daa9
1518c5ea1
hex11414f5

18093301 has 4 divisors (see below), whose sum is σ = 19045600. Its totient is φ = 17141004.

The previous prime is 18093293. The next prime is 18093307. The reversal of 18093301 is 10339081.

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: 10339081 = 53195077.

It is a cyclic number.

It is not a de Polignac number, because 18093301 - 23 = 18093293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18093307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476121 + ... + 476158.

It is an arithmetic number, because the mean of its divisors is an integer number (4761400).

Almost surely, 218093301 is an apocalyptic number.

It is an amenable number.

18093301 is a deficient number, since it is larger than the sum of its proper divisors (952299).

18093301 is an equidigital number, since it uses as much as digits as its factorization.

18093301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952298.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 18093301 is about 4253.6221035724. The cubic root of 18093301 is about 262.5261700288.

The spelling of 18093301 in words is "eighteen million, ninety-three thousand, three hundred one".

Divisors: 1 19 952279 18093301