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13117458 = 234153323
BaseRepresentation
bin110010000010…
…100000010010
3220200102202210
4302002200102
511324224313
61145052550
7216332214
oct62024022
926612683
1013117458
11744a382
124487156
132943813
141a565b4
1512419c3
hexc82812

13117458 has 16 divisors (see below), whose sum is σ = 26875296. Its totient is φ = 4265760.

The previous prime is 13117457. The next prime is 13117459. The reversal of 13117458 is 85471131.

It is an interprime number because it is at equal distance from previous prime (13117457) and next prime (13117459).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13117453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26416 + ... + 26907.

It is an arithmetic number, because the mean of its divisors is an integer number (1679706).

Almost surely, 213117458 is an apocalyptic number.

13117458 is an abundant number, since it is smaller than the sum of its proper divisors (13757838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13117458 is a wasteful number, since it uses less digits than its factorization.

13117458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53369.

The product of its digits is 3360, while the sum is 30.

The square root of 13117458 is about 3621.8031420827. The cubic root of 13117458 is about 235.8395083296.

Adding to 13117458 its reverse (85471131), we get a palindrome (98588589).

The spelling of 13117458 in words is "thirteen million, one hundred seventeen thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 41 82 123 246 53323 106646 159969 319938 2186243 4372486 6558729 13117458