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12348305 = 58927749
BaseRepresentation
bin101111000110…
…101110010001
3212020100200122
4233012232101
511130121210
61120400025
7206646614
oct57065621
925210618
1012348305
116a74512
124176015
1327346b8
1418d617b
15113db55
hexbc6b91

12348305 has 8 divisors (see below), whose sum is σ = 14985000. Its totient is φ = 9767296.

The previous prime is 12348299. The next prime is 12348313. The reversal of 12348305 is 50384321.

It can be written as a sum of positive squares in 4 ways, for example, as 14161 + 12334144 = 119^2 + 3512^2 .

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 12348305 - 24 = 12348289 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 13430 + ... + 14319.

It is an arithmetic number, because the mean of its divisors is an integer number (1873125).

Almost surely, 212348305 is an apocalyptic number.

It is an amenable number.

12348305 is a deficient number, since it is larger than the sum of its proper divisors (2636695).

12348305 is an equidigital number, since it uses as much as digits as its factorization.

12348305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27843.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 12348305 is about 3514.0155093568. The cubic root of 12348305 is about 231.1368104451.

It can be divided in two parts, 12348 and 305, that multiplied together give a triangular number (3766140 = T2744).

The spelling of 12348305 in words is "twelve million, three hundred forty-eight thousand, three hundred five".

Divisors: 1 5 89 445 27749 138745 2469661 12348305