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12415117 = 1113175107
BaseRepresentation
bin101111010111…
…000010001101
3212100202100011
4233113002031
511134240432
61122033221
7210345451
oct57270215
925322304
1012415117
11700a730
1241a8811
132758c30
141912661
151153847
hexbd708d

12415117 has 16 divisors (see below), whose sum is σ = 15446592. Its totient is φ = 9803520.

The previous prime is 12415099. The next prime is 12415121. The reversal of 12415117 is 71151421.

It is a cyclic number.

It is not a de Polignac number, because 12415117 - 223 = 4026509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12415177) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 123 + ... + 4984.

It is an arithmetic number, because the mean of its divisors is an integer number (965412).

Almost surely, 212415117 is an apocalyptic number.

12415117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12415117 is a deficient number, since it is larger than the sum of its proper divisors (3031475).

12415117 is a wasteful number, since it uses less digits than its factorization.

12415117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148.

The product of its digits is 280, while the sum is 22.

The square root of 12415117 is about 3523.5091882951. The cubic root of 12415117 is about 231.5529254353.

Adding to 12415117 its reverse (71151421), we get a palindrome (83566538).

The spelling of 12415117 in words is "twelve million, four hundred fifteen thousand, one hundred seventeen".

Divisors: 1 11 13 17 143 187 221 2431 5107 56177 66391 86819 730301 955009 1128647 12415117