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17485013 = 721327449
BaseRepresentation
bin100001010110…
…0110011010101
31012220022221002
41002230303111
513434010023
61422433045
7301422500
oct102546325
935808832
1017485013
119962827
125a32785
133812780
142472137
151805b28
hex10accd5

17485013 has 12 divisors (see below), whose sum is σ = 21905100. Its totient is φ = 13833792.

The previous prime is 17485009. The next prime is 17485049. The reversal of 17485013 is 31058471.

It can be written as a sum of positive squares in 2 ways, for example, as 7606564 + 9878449 = 2758^2 + 3143^2 .

It is not a de Polignac number, because 17485013 - 22 = 17485009 is a prime.

It is a super-2 number, since 2×174850132 = 611451359220338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17485093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13088 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (1825425).

Almost surely, 217485013 is an apocalyptic number.

17485013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

17485013 is a deficient number, since it is larger than the sum of its proper divisors (4420087).

17485013 is a wasteful number, since it uses less digits than its factorization.

17485013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27476 (or 27469 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 17485013 is about 4181.5084598743. The cubic root of 17485013 is about 259.5505697262.

The spelling of 17485013 in words is "seventeen million, four hundred eighty-five thousand, thirteen".

Divisors: 1 7 13 49 91 637 27449 192143 356837 1345001 2497859 17485013