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11212440230 = 252938663587
BaseRepresentation
bin10100111000101000…
…00100001010100110
31001221102011222110002
422130110010022212
5140430341041410
65052333301302
7544566112055
oct123424041246
931842158402
1011212440230
114834148332
12220b034832
131098c49124
147851b039c
154595547a5
hex29c5042a6

11212440230 has 16 divisors (see below), whose sum is σ = 20878337520. Its totient is φ = 4330321632.

The previous prime is 11212440163. The next prime is 11212440233. The reversal of 11212440230 is 3204421211.

It is a super-2 number, since 2×112124402302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212440233) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19331504 + ... + 19332083.

It is an arithmetic number, because the mean of its divisors is an integer number (1304896095).

Almost surely, 211212440230 is an apocalyptic number.

11212440230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212440230 is a deficient number, since it is larger than the sum of its proper divisors (9665897290).

11212440230 is a wasteful number, since it uses less digits than its factorization.

11212440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38663623.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11212440230 its reverse (3204421211), we get a palindrome (14416861441).

The spelling of 11212440230 in words is "eleven billion, two hundred twelve million, four hundred forty thousand, two hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 38663587 77327174 193317935 386635870 1121244023 2242488046 5606220115 11212440230