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68456586 = 23111723797
BaseRepresentation
bin1000001010010…
…01000010001010
311202210221210010
410011021002022
5120011102321
610443132350
71460604612
oct405110212
9152727703
1068456586
11357074a0
121ab140b6
131124b173
14913da42
156023676
hex414908a

68456586 has 96 divisors (see below), whose sum is σ = 164630592. Its totient is φ = 18800640.

The previous prime is 68456537. The next prime is 68456621. The reversal of 68456586 is 68565486.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 705690 + ... + 705786.

It is an arithmetic number, because the mean of its divisors is an integer number (1714902).

Almost surely, 268456586 is an apocalyptic number.

68456586 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68456586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82315296).

68456586 is an abundant number, since it is smaller than the sum of its proper divisors (96174006).

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

68456586 is a wasteful number, since it uses less digits than its factorization.

68456586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 167 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 68456586 is about 8273.8495272757. The cubic root of 68456586 is about 409.0770155641.

Subtracting 68456586 from its reverse (68565486), we obtain a square (108900 = 3302).

It can be divided in two parts, 6845 and 6586, that added together give a palindrome (13431).

The spelling of 68456586 in words is "sixty-eight million, four hundred fifty-six thousand, five hundred eighty-six".

Divisors: 1 2 3 6 11 17 22 33 34 37 51 66 74 97 102 111 187 194 222 289 291 374 407 561 578 582 629 814 867 1067 1122 1221 1258 1649 1734 1887 2134 2442 3179 3201 3298 3589 3774 4947 6358 6402 6919 7178 9537 9894 10693 10767 13838 18139 19074 20757 21386 21534 28033 32079 36278 39479 41514 54417 56066 61013 64158 78958 84099 108834 117623 118437 122026 168198 183039 235246 236874 308363 352869 366078 616726 671143 705738 925089 1037221 1342286 1850178 2013429 2074442 3111663 4026858 6223326 11409431 22818862 34228293 68456586