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13313550 = 23521723227
BaseRepresentation
bin110010110010…
…011000001110
3221001101202110
4302302120032
511402013200
61153204450
7221110005
oct62623016
927041673
1013313550
117573738
124560726
1329b1b53
141aa7c3c
15127eb50
hexcb260e

13313550 has 96 divisors (see below), whose sum is σ = 36640512. Its totient is φ = 3182080.

The previous prime is 13313543. The next prime is 13313557. The reversal of 13313550 is 5531331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13313543) and next prime (13313557).

It is a super-2 number, since 2×133135502 = 354501227205000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58537 + ... + 58763.

It is an arithmetic number, because the mean of its divisors is an integer number (381672).

Almost surely, 213313550 is an apocalyptic number.

13313550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13313550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18320256).

13313550 is an abundant number, since it is smaller than the sum of its proper divisors (23326962).

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

13313550 is a wasteful number, since it uses less digits than its factorization.

13313550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 13313550 is about 3648.7737666235. The cubic root of 13313550 is about 237.0088835709.

Adding to 13313550 its reverse (5531331), we get a palindrome (18844881).

The spelling of 13313550 in words is "thirteen million, three hundred thirteen thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 17 23 25 30 34 46 50 51 69 75 85 102 115 138 150 170 227 230 255 345 391 425 454 510 575 681 690 782 850 1135 1150 1173 1275 1362 1725 1955 2270 2346 2550 3405 3450 3859 3910 5221 5675 5865 6810 7718 9775 10442 11350 11577 11730 15663 17025 19295 19550 23154 26105 29325 31326 34050 38590 52210 57885 58650 78315 88757 96475 115770 130525 156630 177514 192950 261050 266271 289425 391575 443785 532542 578850 783150 887570 1331355 2218925 2662710 4437850 6656775 13313550