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2768688 = 2433131729
BaseRepresentation
bin1010100011111100110000
312012122221000
422203330300
51202044223
6135202000
732350656
oct12437460
95178830
102768688
11162117a
12b16300
1375c2a0
14520dd6
1539a543
hex2a3f30

2768688 has 160 divisors (see below), whose sum is σ = 9374400. Its totient is φ = 774144.

The previous prime is 2768683. The next prime is 2768767. The reversal of 2768688 is 8868672.

2768688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (258048) is a multiple of the sum of its prime divisors (64).

It is not an unprimeable number, because it can be changed into a prime (2768681) 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 31 ways as a sum of consecutive naturals, for example, 95458 + ... + 95486.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

22768688 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 2768688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4687200).

2768688 is an abundant number, since it is smaller than the sum of its proper divisors (6605712).

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

2768688 is a wasteful number, since it uses less digits than its factorization.

2768688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 64 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2768688 is about 1663.9374988262. The cubic root of 2768688 is about 140.4186110181.

The spelling of 2768688 in words is "two million, seven hundred sixty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 29 34 36 39 48 51 52 54 58 68 72 78 87 102 104 108 116 117 136 144 153 156 174 204 208 216 221 232 234 261 272 306 312 348 351 377 408 432 442 459 464 468 493 522 612 624 663 696 702 754 783 816 884 918 936 986 1044 1131 1224 1326 1392 1404 1479 1508 1566 1768 1836 1872 1972 1989 2088 2262 2448 2652 2808 2958 3016 3132 3393 3536 3672 3944 3978 4176 4437 4524 5304 5616 5916 5967 6032 6264 6409 6786 7344 7888 7956 8874 9048 10179 10608 11832 11934 12528 12818 13311 13572 15912 17748 18096 19227 20358 23664 23868 25636 26622 27144 31824 35496 38454 40716 47736 51272 53244 54288 57681 70992 76908 81432 95472 102544 106488 115362 153816 162864 173043 212976 230724 307632 346086 461448 692172 922896 1384344 2768688