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13243950 = 23252191549
BaseRepresentation
bin110010100001…
…011000101110
3220220212021200
4302201120232
511342301300
61151510330
7220400046
oct62413056
926825250
1013243950
117526415
1245283a6
132989275
141a8a726
151269200
hexca162e

13243950 has 72 divisors (see below), whose sum is σ = 37479000. Its totient is φ = 3343680.

The previous prime is 13243933. The next prime is 13243961. The reversal of 13243950 is 5934231.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 7776 + ... + 9324.

Almost surely, 213243950 is an apocalyptic number.

13243950 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 13243950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18739500).

13243950 is an abundant number, since it is smaller than the sum of its proper divisors (24235050).

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

13243950 is a wasteful number, since it uses less digits than its factorization.

13243950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 13243950 is about 3639.2238183437. The cubic root of 13243950 is about 236.5951535127.

The spelling of 13243950 in words is "thirteen million, two hundred forty-three thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 19 25 30 38 45 50 57 75 90 95 114 150 171 190 225 285 342 450 475 570 855 950 1425 1549 1710 2850 3098 4275 4647 7745 8550 9294 13941 15490 23235 27882 29431 38725 46470 58862 69705 77450 88293 116175 139410 147155 176586 232350 264879 294310 348525 441465 529758 697050 735775 882930 1324395 1471550 2207325 2648790 4414650 6621975 13243950