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13252260 = 22357139227
BaseRepresentation
bin110010100011…
…011010100100
3220221021200110
4302203122210
511343033020
61152013020
7220433220
oct62433244
926837613
1013252260
11753168a
124531170
13298cc98
141a8d780
15126b8e0
hexca36a4

13252260 has 96 divisors (see below), whose sum is σ = 42900480. Its totient is φ = 2994048.

The previous prime is 13252259. The next prime is 13252273. The reversal of 13252260 is 6225231.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 58267 + ... + 58493.

It is an arithmetic number, because the mean of its divisors is an integer number (446880).

Almost surely, 213252260 is an apocalyptic number.

13252260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13252260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21450240).

13252260 is an abundant number, since it is smaller than the sum of its proper divisors (29648220).

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

13252260 is a wasteful number, since it uses less digits than its factorization.

13252260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13252260 is about 3640.3653662785. The cubic root of 13252260 is about 236.6446275406.

Adding to 13252260 its reverse (6225231), we get a palindrome (19477491).

The spelling of 13252260 in words is "thirteen million, two hundred fifty-two thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 139 140 210 227 278 417 420 454 556 681 695 834 908 973 1135 1362 1390 1589 1668 1946 2085 2270 2724 2780 2919 3178 3405 3892 4170 4540 4767 4865 5838 6356 6810 7945 8340 9534 9730 11676 13620 14595 15890 19068 19460 23835 29190 31553 31780 47670 58380 63106 94659 95340 126212 157765 189318 220871 315530 378636 441742 473295 631060 662613 883484 946590 1104355 1325226 1893180 2208710 2650452 3313065 4417420 6626130 13252260