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11112180894 = 23219316910253
BaseRepresentation
bin10100101100101011…
…00110110010011110
31001200102112021111100
422112111212302132
5140224204242034
65034352333530
7542240656563
oct122625466236
931612467440
1011112180894
114792599a81
1221a15442a6
131081244589
14775b5286a
1545084d099
hex296566c9e

11112180894 has 48 divisors (see below), whose sum is σ = 25354040400. Its totient is φ = 3507660288.

The previous prime is 11112180889. The next prime is 11112180901. The reversal of 11112180894 is 49808121111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1078672 + ... + 1088924.

It is an arithmetic number, because the mean of its divisors is an integer number (528209175).

Almost surely, 211112180894 is an apocalyptic number.

11112180894 is an abundant number, since it is smaller than the sum of its proper divisors (14241859506).

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

11112180894 is a wasteful number, since it uses less digits than its factorization.

11112180894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449 (or 13446 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

The spelling of 11112180894 in words is "eleven billion, one hundred twelve million, one hundred eighty thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 3169 6338 9507 10253 19014 20506 28521 30759 57042 60211 61518 92277 120422 180633 184554 194807 361266 389614 541899 584421 1083798 1168842 1753263 3506526 32491757 64983514 97475271 194950542 292425813 584851626 617343383 1234686766 1852030149 3704060298 5556090447 11112180894