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13250216 = 2372941199
BaseRepresentation
bin110010100010…
…111010101000
3220221011212202
4302202322220
511343001331
61151555332
7220424240
oct62427250
926834782
1013250216
1175300a1
12452bb48
13298c085
141a8cb20
15126aecb
hexca2ea8

13250216 has 64 divisors (see below), whose sum is σ = 30240000. Its totient is φ = 5322240.

The previous prime is 13250213. The next prime is 13250227. The reversal of 13250216 is 61205231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13250213) 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 15 ways as a sum of consecutive naturals, for example, 66485 + ... + 66683.

It is an arithmetic number, because the mean of its divisors is an integer number (472500).

Almost surely, 213250216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13250216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15120000).

13250216 is an abundant number, since it is smaller than the sum of its proper divisors (16989784).

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

13250216 is a wasteful number, since it uses less digits than its factorization.

13250216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13250216 is about 3640.0846144012. The cubic root of 13250216 is about 236.6324603961.

Adding to 13250216 its reverse (61205231), we get a palindrome (74455447).

The spelling of 13250216 in words is "thirteen million, two hundred fifty thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 28 29 41 56 58 82 116 164 199 203 232 287 328 398 406 574 796 812 1148 1189 1393 1592 1624 2296 2378 2786 4756 5572 5771 8159 8323 9512 11144 11542 16318 16646 23084 32636 33292 40397 46168 57113 65272 66584 80794 114226 161588 228452 236611 323176 456904 473222 946444 1656277 1892888 3312554 6625108 13250216