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11031223230 = 2325571214657
BaseRepresentation
bin10100100011000001…
…10001101110111110
31001110210012012110100
422101200301232332
5140042443120410
65022341221530
7540235564446
oct122140615676
931423165410
1011031223230
114750924315
12217a4018a6
13106a53a331
147690bb126
154486aa8c0
hex291831bbe

11031223230 has 48 divisors (see below), whose sum is σ = 28731543984. Its totient is φ = 2936494080.

The previous prime is 11031223213. The next prime is 11031223277. The reversal of 11031223230 is 3232213011.

11031223230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55939 + ... + 158718.

It is an arithmetic number, because the mean of its divisors is an integer number (598573833).

Almost surely, 211031223230 is an apocalyptic number.

11031223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11031223230 is an abundant number, since it is smaller than the sum of its proper divisors (17700320754).

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

11031223230 is a wasteful number, since it uses less digits than its factorization.

11031223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215241 (or 215238 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11031223230 its reverse (3232213011), we get a palindrome (14263436241).

The spelling of 11031223230 in words is "eleven billion, thirty-one million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 571 1142 1713 2855 3426 5139 5710 8565 10278 17130 25695 51390 214657 429314 643971 1073285 1287942 1931913 2146570 3219855 3863826 6439710 9659565 19319130 122569147 245138294 367707441 612845735 735414882 1103122323 1225691470 1838537205 2206244646 3677074410 5515611615 11031223230