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12417385 = 53767121
BaseRepresentation
bin101111010111…
…100101101001
3212100212110011
4233113211221
511134324020
61122051521
7210355201
oct57274551
925325404
1012417385
117011402
1241a9ba1
132759c86
141913401
15115435a
hexbd7969

12417385 has 8 divisors (see below), whose sum is σ = 15303816. Its totient is φ = 9665280.

The previous prime is 12417347. The next prime is 12417397. The reversal of 12417385 is 58371421.

It can be written as a sum of positive squares in 4 ways, for example, as 3345241 + 9072144 = 1829^2 + 3012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12417385 - 27 = 12417257 is a prime.

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, 33376 + ... + 33745.

It is an arithmetic number, because the mean of its divisors is an integer number (1912977).

Almost surely, 212417385 is an apocalyptic number.

It is an amenable number.

12417385 is a deficient number, since it is larger than the sum of its proper divisors (2886431).

12417385 is an equidigital number, since it uses as much as digits as its factorization.

12417385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67163.

The product of its digits is 6720, while the sum is 31.

The square root of 12417385 is about 3523.8310118392. The cubic root of 12417385 is about 231.5670246463.

The spelling of 12417385 in words is "twelve million, four hundred seventeen thousand, three hundred eighty-five".

Divisors: 1 5 37 185 67121 335605 2483477 12417385