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11250243405 = 3251371824857
BaseRepresentation
bin10100111101001000…
…10001011101001101
31002001001022120122200
422132210101131031
5141020030242110
65100203432113
7545535330312
oct123644213515
932031276580
1011250243405
114853518425
12221b825639
1310a3a23a7b
1478a210d09
1545ca206c0
hex29e91174d

11250243405 has 24 divisors (see below), whose sum is σ = 19642771512. Its totient is φ = 5956329984.

The previous prime is 11250243401. The next prime is 11250243461. The reversal of 11250243405 is 50434205211.

11250243405 is a `hidden beast` number, since 1 + 1 + 250 + 2 + 4 + 3 + 405 = 666.

11250243405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 387184329 + 10863059076 = 19677^2 + 104226^2 .

It is not a de Polignac number, because 11250243405 - 22 = 11250243401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11250243401) by changing a digit.

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, 906264 + ... + 918593.

It is an arithmetic number, because the mean of its divisors is an integer number (818448813).

Almost surely, 211250243405 is an apocalyptic number.

11250243405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11250243405 is a deficient number, since it is larger than the sum of its proper divisors (8392528107).

11250243405 is a wasteful number, since it uses less digits than its factorization.

11250243405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825005 (or 1825002 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 11250243405 its reverse (50434205211), we get a palindrome (61684448616).

The spelling of 11250243405 in words is "eleven billion, two hundred fifty million, two hundred forty-three thousand, four hundred five".

Divisors: 1 3 5 9 15 45 137 411 685 1233 2055 6165 1824857 5474571 9124285 16423713 27372855 82118565 250005409 750016227 1250027045 2250048681 3750081135 11250243405