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18834305 = 57538123
BaseRepresentation
bin100011111011…
…0001110000001
31022102212210212
41013312032001
514310144210
61511403505
7316042340
oct107661601
938385725
1018834305
11a6a4546
126383595
133b95979
142703b57
1519c0805
hex11f6381

18834305 has 8 divisors (see below), whose sum is σ = 25829952. Its totient is φ = 12914928.

The previous prime is 18834223. The next prime is 18834331. The reversal of 18834305 is 50343881.

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 18834305 - 212 = 18830209 is a prime.

It is a super-3 number, since 3×188343053 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269027 + ... + 269096.

It is an arithmetic number, because the mean of its divisors is an integer number (3228744).

Almost surely, 218834305 is an apocalyptic number.

It is an amenable number.

18834305 is a deficient number, since it is larger than the sum of its proper divisors (6995647).

18834305 is an equidigital number, since it uses as much as digits as its factorization.

18834305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538135.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 18834305 is about 4339.8508038872. The cubic root of 18834305 is about 266.0622133864.

The spelling of 18834305 in words is "eighteen million, eight hundred thirty-four thousand, three hundred five".

Divisors: 1 5 7 35 538123 2690615 3766861 18834305