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11215230 = 23513149193
BaseRepresentation
bin101010110010…
…000101111110
3210002210101220
4222302011332
510332341410
61040214210
7164220315
oct52620576
923083356
1011215230
116370194
12390a366
132428a40
1416bd27c
15eb8070
hexab217e

11215230 has 64 divisors (see below), whose sum is σ = 29332800. Its totient is φ = 2727936.

The previous prime is 11215229. The next prime is 11215247. The reversal of 11215230 is 3251211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58014 + ... + 58206.

It is an arithmetic number, because the mean of its divisors is an integer number (458325).

Almost surely, 211215230 is an apocalyptic number.

11215230 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 11215230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14666400).

11215230 is an abundant number, since it is smaller than the sum of its proper divisors (18117570).

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

11215230 is a wasteful number, since it uses less digits than its factorization.

11215230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 11215230 is about 3348.9147495868. The cubic root of 11215230 is about 223.8391569621.

Adding to 11215230 its reverse (3251211), we get a palindrome (14466441).

The spelling of 11215230 in words is "eleven million, two hundred fifteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 149 193 195 298 386 390 447 579 745 894 965 1158 1490 1930 1937 2235 2509 2895 3874 4470 5018 5790 5811 7527 9685 11622 12545 15054 19370 25090 28757 29055 37635 57514 58110 75270 86271 143785 172542 287570 373841 431355 747682 862710 1121523 1869205 2243046 3738410 5607615 11215230