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13084209 = 3213910459
BaseRepresentation
bin110001111010…
…011000110001
3220121202011100
4301322120301
511322143314
61144235013
7216133245
oct61723061
926552140
1013084209
1174273a6
12446ba69
132931648
141a48425
151236c09
hexc7a631

13084209 has 12 divisors (see below), whose sum is σ = 19037200. Its totient is φ = 8659224.

The previous prime is 13084187. The next prime is 13084241. The reversal of 13084209 is 90248031.

13084209 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13084209 - 216 = 13018673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13084909) 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, 3979 + ... + 6480.

Almost surely, 213084209 is an apocalyptic number.

It is an amenable number.

13084209 is a deficient number, since it is larger than the sum of its proper divisors (5952991).

13084209 is a wasteful number, since it uses less digits than its factorization.

13084209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10604 (or 10601 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13084209 is about 3617.2101127803. The cubic root of 13084209 is about 235.6400778602.

The spelling of 13084209 in words is "thirteen million, eighty-four thousand, two hundred nine".

Divisors: 1 3 9 139 417 1251 10459 31377 94131 1453801 4361403 13084209