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12471117 = 310394001
BaseRepresentation
bin101111100100…
…101101001101
3212110121011020
4233210231031
511143033432
61123144353
7211000641
oct57445515
925417136
1012471117
11704880a
1242150b9
132778579
141928c21
15116522c
hexbe4b4d

12471117 has 8 divisors (see below), whose sum is σ = 16648320. Its totient is φ = 8304000.

The previous prime is 12471113. The next prime is 12471127. The reversal of 12471117 is 71117421.

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

It is not a de Polignac number, because 12471117 - 22 = 12471113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12471113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (2081040).

Almost surely, 212471117 is an apocalyptic number.

It is an amenable number.

12471117 is a deficient number, since it is larger than the sum of its proper divisors (4177203).

12471117 is a wasteful number, since it uses less digits than its factorization.

12471117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043.

The product of its digits is 392, while the sum is 24.

The square root of 12471117 is about 3531.4468706183. The cubic root of 12471117 is about 231.9005531471.

Adding to 12471117 its reverse (71117421), we get a palindrome (83588538).

The spelling of 12471117 in words is "twelve million, four hundred seventy-one thousand, one hundred seventeen".

Divisors: 1 3 1039 3117 4001 12003 4157039 12471117