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13057317 = 32713107149
BaseRepresentation
bin110001110011…
…110100100101
3220120101021100
4301303310211
511320313232
61143510313
7215661660
oct61636445
926511240
1013057317
117409179
124458399
132922330
141a3c6d7
15122dc7c
hexc73d25

13057317 has 48 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 6777216.

The previous prime is 13057277. The next prime is 13057321. The reversal of 13057317 is 71375031.

It is not a de Polignac number, because 13057317 - 222 = 8863013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057327) 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 47 ways as a sum of consecutive naturals, for example, 87559 + ... + 87707.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 213057317 is an apocalyptic number.

It is an amenable number.

13057317 is a deficient number, since it is larger than the sum of its proper divisors (10529883).

13057317 is a wasteful number, since it uses less digits than its factorization.

13057317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 13057317 is about 3613.4909713461. The cubic root of 13057317 is about 235.4785299642.

The spelling of 13057317 in words is "thirteen million, fifty-seven thousand, three hundred seventeen".

Divisors: 1 3 7 9 13 21 39 63 91 107 117 149 273 321 447 749 819 963 1043 1341 1391 1937 2247 3129 4173 5811 6741 9387 9737 12519 13559 15943 17433 29211 40677 47829 87633 111601 122031 143487 207259 334803 621777 1004409 1450813 1865331 4352439 13057317