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11311768 = 2313234729
BaseRepresentation
bin101011001001…
…101010011000
3210021200211101
4223021222120
510343434033
61042241144
7165101626
oct53115230
923250741
1011311768
116426776
1239561b4
132460970
141706516
15ed697d
hexac9a98

11311768 has 32 divisors (see below), whose sum is σ = 23839200. Its totient is φ = 4992768.

The previous prime is 11311759. The next prime is 11311787. The reversal of 11311768 is 86711311.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28 + ... + 4756.

It is an arithmetic number, because the mean of its divisors is an integer number (744975).

Almost surely, 211311768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11311768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11919600).

11311768 is an abundant number, since it is smaller than the sum of its proper divisors (12527432).

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

11311768 is a wasteful number, since it uses less digits than its factorization.

11311768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771 (or 4767 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 11311768 is about 3363.2971917450. The cubic root of 11311768 is about 224.4795741358.

It can be divided in two parts, 113 and 11768, that added together give a square (11881 = 1092).

The spelling of 11311768 in words is "eleven million, three hundred eleven thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 184 299 598 1196 2392 4729 9458 18916 37832 61477 108767 122954 217534 245908 435068 491816 870136 1413971 2827942 5655884 11311768