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11001230540 = 2252591212297
BaseRepresentation
bin10100011111011100…
…10111010011001100
31001101200202102012222
422033232113103030
5140012303334130
65015350314512
7536422626266
oct121756272314
931350672188
1011001230540
1147359a9373
122170358a38
131064268791
14765110b36
15445c33ce5
hex28fb974cc

11001230540 has 24 divisors (see below), whose sum is σ = 23111609472. Its totient is φ = 4398773120.

The previous prime is 11001230497. The next prime is 11001230543. The reversal of 11001230540 is 4503210011.

It is not an unprimeable number, because it can be changed into a prime (11001230543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54329 + ... + 157968.

It is an arithmetic number, because the mean of its divisors is an integer number (962983728).

Almost surely, 211001230540 is an apocalyptic number.

11001230540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001230540 is an abundant number, since it is smaller than the sum of its proper divisors (12110378932).

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

11001230540 is a wasteful number, since it uses less digits than its factorization.

11001230540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214897 (or 214895 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 11001230540 its reverse (4503210011), we get a palindrome (15504440551).

The spelling of 11001230540 in words is "eleven billion, one million, two hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2591 5182 10364 12955 25910 51820 212297 424594 849188 1061485 2122970 4245940 550061527 1100123054 2200246108 2750307635 5500615270 11001230540