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11940885 = 3351121743
BaseRepresentation
bin101101100011…
…010000010101
3211110122211000
4231203100111
511024102020
61103533513
7203332035
oct55432025
924418730
1011940885
116816400
123bba299
132621118
14182b8c5
1510ad090
hexb63415

11940885 has 96 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 5322240.

The previous prime is 11940883. The next prime is 11940913. The reversal of 11940885 is 58804911.

It is not a de Polignac number, because 11940885 - 21 = 11940883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11940883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 277674 + ... + 277716.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

Almost surely, 211940885 is an apocalyptic number.

11940885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11940885 is an abundant number, since it is smaller than the sum of its proper divisors (13339755).

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

11940885 is a wasteful number, since it uses less digits than its factorization.

11940885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 11940885 is about 3455.5585655578. The cubic root of 11940885 is about 228.5662862496.

The spelling of 11940885 in words is "eleven million, nine hundred forty thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 11 15 17 27 33 43 45 51 55 85 99 121 129 135 153 165 187 215 255 297 363 387 459 473 495 561 605 645 731 765 935 1089 1161 1419 1485 1683 1815 1935 2057 2193 2295 2365 2805 3267 3655 4257 5049 5203 5445 5805 6171 6579 7095 8041 8415 10285 10965 12771 15609 16335 18513 19737 21285 24123 25245 26015 30855 32895 40205 46827 55539 63855 72369 78045 88451 92565 98685 120615 140481 217107 234135 265353 277695 361845 442255 702405 796059 1085535 1326765 2388177 3980295 11940885