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12470305 = 52494061
BaseRepresentation
bin101111100100…
…100000100001
3212110120001011
4233210200201
511143022210
61123140521
7210665401
oct57444041
925416034
1012470305
117048141
124214741
1327780a3
141928801
151164d8a
hexbe4821

12470305 has 4 divisors (see below), whose sum is σ = 14964372. Its totient is φ = 9976240.

The previous prime is 12470287. The next prime is 12470321. The reversal of 12470305 is 50307421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50307421 = 192647759.

It can be written as a sum of positive squares in 2 ways, for example, as 3283344 + 9186961 = 1812^2 + 3031^2 .

It is not a de Polignac number, because 12470305 - 211 = 12468257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247026 + ... + 1247035.

It is an arithmetic number, because the mean of its divisors is an integer number (3741093).

Almost surely, 212470305 is an apocalyptic number.

It is an amenable number.

12470305 is a deficient number, since it is larger than the sum of its proper divisors (2494067).

12470305 is an equidigital number, since it uses as much as digits as its factorization.

12470305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494066.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12470305 is about 3531.3319017051. The cubic root of 12470305 is about 231.8955199883.

Adding to 12470305 its reverse (50307421), we get a palindrome (62777726).

The spelling of 12470305 in words is "twelve million, four hundred seventy thousand, three hundred five".

Divisors: 1 5 2494061 12470305